You may be getting confused between standard/saver and anytime awards
On UA FRA-JFK a business award is 57500 UA ff miles one way or 115,000 return
http://www.awardace.com/redemptions/...p_type=one_way (this interface has gone backwards)
http://www.flyermiler.com/

Frequent flyer miles are not equal to earn or burn between ffp’s. 10,000 frequent flyer miles in 1 ffp may get you a longer award flight than 15,000 frequent flyer miles in another ffp. Each airline ffp has different rules for using (burning) those miles/points for awards and different copay/surcharge $$ fees. There are award cash surcharges with some ffp’s/routes/airlines. With awards taxes are the same for all airlines for the same route and class. Award surcharge can/are different.