Green: Very good.  Best, no more than two tied.
Yellow: Same (or even subpar) standard award.  But has off-peak award that's better.
Red: Very bad.  Worst, no more than two tied.

Major alliances:
OneWorld: AA, Aer Lingus, BA, Cathay, Finnair, Iberia, LanChile, Qantas
    Asia 1: China, Japan, Korea, Mongolia; Asia 2: Bhutan, Brunei, Guam, HKG, Indonesia, Laos, Malaysia, Myanmar, Nepal, Philippines, Saipan, SIN, Sri Lanka, Taiwan, Thailand, Vietnam
    S. Am 1: Centr. Am, Colombia, Ecuador, Peru, Venezuela; S. Am. 2: Argentina, Bolivia, Brazil, Chile (excl. Easter Island), Paraguay, Uruguay

SkyTeam: Aeromexico, Air France, Alitalia, CO, CSA Czech, Delta, KLM, Korean Air, NW
    Asia (N): Japan, Korea, Mongolia; Asia (S): Brunei, Burma, China, Guam, Indonesia, Marshall Islands, Malaysia, Myanmar, Philippines, Rota, Saipan, SIN, Taiwan, Thailand
    S. Am. (N): Columbia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela; S. Am. (S): Argentina, Bolivia, Brazil, Chile, Paraguay, Uruguay

Star Alliance: Air Canada, Air NZ, ANA, Asiana, Austrian Air, BMI, LOT Polish, Lufthansa, SAS, SQ, Spanair, Thai, US, Varig
    Regions: Asia (N): China, Guam, Korea, Taiwan; Asia (S): Bangladesh, Borneo, Brunei, Cambodia, HKG, Indonesia, Laos, Malaysia, Myanmar, Philippines, SIN, Sri Lanka, Thailand, Vietnam

AA: (Earning on AA) [all OK except O/Q] (Earning on partners)
$5 fee for phone reservations, $xx fee for airport reservations
As of 2/15/05, purchasing miles costs $25, 2.75c/mi for 5k or less, 2.5c/mi for 6k+, 1k chunks, plus tax. Transferring miles costs $25 plus $50/5k (so 1c/mi in 5k chunks), up to 15k, plus tax.
Fees: $50 fee for award travel booked 7-20 days away, $75 fee for travel booked 6 or fewer days away.
    Change fee of $100 (no fee if just changing dates/times).  $100 redeposit fee.
Discount economy: G, H, K, L, M, N, Q**, S, V, W (trans-Atlantic Q not valid for miles)
Note on BA: can't redeem or earn on BA trans-Atlantic flights, get 25% of miles in discount economy (not B, Y, H)
Note on Iberia: get 30% of miles in discount economy (not R, Y)
(AA Awards) (AA Upgrades) (OneWorld awards)
*Note new co-pay of $250 to upgrade between N. Am. and Eur/Jap/S. Am. (S) on most discounted economy
--Supposedly can book one-way travel through phone?
Mileage partners: OneWorld, Air Pacific, Air Tahiti, Alaska, El Al, Hawaiian, JAL, LOT Polish, Mexicana, SN Brussels, Swiss, Southern Winds, TACA, TAM, Turkish Air
(Timetable)

NWA: (Earning on NW) (Earning on partners)
$5 fee for phone reservations, $10 fee for airport reservations
As of 2/15/05, purchase miles for $25 plus 2.8c/mi (incl. tax??), 2.5k chunks, up to 7.5k/yr. Can also purchase 1k miles for $20 by “SuperSizing” next flight. Transfer miles for $25 plus 1c/mi, 5k to 10k.
Discount economy: M, H, Q, V, L, T, K (100% EQM)
(US-US) (US-Car) (US-Hawaii) (US-S. Am) (US-Eur) (US-Asia) (US-Austr) (Eur-Eur) (Asia-Asia)
Upgrades only on NW, CO, NW-coded KLM.  Saver rewards require Sat. night stay (only N. Am?)
Mileage partners: Skyteam, Air Alps, Air Europa, Air Tahiti Nui, Alaska Airlines, America West, American Eagle (from LAX), Big Sky, Cebu Pacific, Copa Airlines, Garuda Indonesia, Gulfstream Int'l, Hawaiian, JAL, Jet Airways, Kenya Airways, Malaysia Airlines, Malev Hungarian, Pacific Island Aviation
JAL cannot earn, can only redeem miles for domestic Japan flights  Malaysia G, L, V and domestic Malaysia flights do not earn mileage..
(Timetable)

United: 800-UNITED-1 (Domestic), 800-538-2929 (Int'l), +44-845-8-444-777, +65-6873-3533
$5 fee for phone reservations, $10 fee for airport reservations, $15 fee for phone award reservations.
As of 2/15/05, purchase miles for $25 plus 2.75c/mi and taxes for 5k or less, 2.5c/mi and taxes for 6k or more. Transfer miles for 1c/mi (incl. taxes) plus $25.
(Earning on UA) (Earning on partners)
Discount economy: E,M,U,H,Q,V,W,S,T,K,L (upgr. not valid on E/U in US, is valid on C, D, Y, B, M and H internationally)
(Saver awards) (Standard awards) (Upgrade awards) (Star Alliance flights)
Rules: No domestic stopovers.  One stopover allowed on inter-region flights.  Fees (???) for redepositing or changing ticket.
Mileage partners: Star Alliance, Aeromar, Air China, Aloha Airlines, BWIA West Indies Airways, Cayman Airways, Emirates
(Timetable)
Note can transfer from CO to UA through Amtrak, 1:1, 5000 mile chunks.

Continental: 800-621-7467 (Domestic rewards), 800-344-1411 (Int'l rewards), 801-359-9719
$5 fee for phone reservations, $10 fee for airport reservations (couldn't find explicit link)
As of 2/15/05, purchase miles (up to 25% of award) for 3.2c/mi plus tax in 1k chunks. Transfer miles for 1c/mi, 500 mile chunks, might be expired though.
Fees: $50 travel within 4-14 days, $75 travel within 3 days.  Redeposit/change fee of $50.
(Earning on CO) (Earning on partners)
Disc. Econ.: Q, I, S, W, T, X, L ($450 fee to upgrade to business)
(CO/Partner Awards) (CO Upgrades)
Saver rewards require Sat. night stay (only N. Am?)
Mileage partners: Skyteam, Air Europa, Alaska, American Eagle (from LA), flyBE, Cape Air, Copa, Emirates, EVA, Hawaiian, Horizon, Maersk, Qantas, TAP, VS, Amex, Milepoint
Note can transfer from CO to UA through Amtrak, 1:1, 5000 mile chunks.
(Timetable)

US Airways:
$5 fee for phone reservations, $10 fee for airport reservations
Purchase miles for 3.5c/mi plus $25. Transfer miles???.
Fees:  $75 to redeposit upgrade
(Earning on US/Star Alliance) (Earning on other partners)
Disc. Econ.: M, H, K, Q, V, L, W, S, or T
(US Awards) (US Upgrades) (Star Alliance Awards)
Off-peak US: Sep 15-Feb 28; Europe: Oct 1 - Apr 30
Saver rewards in US require Sat. night stay
Mileage partners: Star Alliance, Bahamasair, Caribbean Star, Caribbean Sun, Qantas, Amex, Milepoint, Points.com
(Timetable)

Delta:
$5 fee for phone reservations, $10 fee for airport reservations
As of 2/15/05, purchase miles for $25 plus 2.75c/mi + 7.5% tax. Transfer miles for $25 plus 1c/mi (5k to 10k, 1k chunks).
Fees: $75 for 3 days or less advance.  $50 for 4-14 days in advance.  $100 redeposit/change fee.  Only $25 if only changing time(?).
(Earning on DL) (Earning on partners)
Disc. Econ:
(From US) (From Eur) (From Asia (S)) (Partner awards) (DL Upgrades)
Mileage partners: SkyTeam, Air Jamaica, Alaska, Avianca, China Airlines, China Southern, El Al, Emirates, Malaysia, SQ, South African Airways, VS
Malaysia: no mileage for coach.  Also only awards to/from US or Buenos Aires.
(Timetable)