I live in the tri-valley in California and thinking about replacing my HVAC unit. it is a single story about 1600 sq ft. It is a upflow system with all the duct work in the attic. Both of the companies has high marks and is similar in price about $200 difference. Any Suggestions?

I am replacing the HVAC system and the Ductwork with R-8

Option 1
Trane XV95 -
Trane A/c Evaporator Coil
Trane XB300 13 SEER condenser

Option 2:
Carrier Infinity 96
Carrier Evaporator coils
Carrier 14 SEER Condenser - 24ABC6