which heat pump is best?
 

I Have the following bids from contractors to replace heat pump and furnace. I live near Philadelphia.
#1 Trane XB14 15 SEER $6332
#2 Carrier 25HCC524 16 SEER $5750
#3 Lennox 14HPX 15 SEER $4375

all are 2 ton and have variable speed fan. all include replacing all lines, new heat pump pad
When I look at reviews, all I seem to find are bad ones for each. Any suggestions? Are these prices in line?