I have the following quotes for an AC install on our *two* forced air
heating units and wanted to sanity check it for quality of equipment
and pricing. Location is New England and there are no significant pipe
routing or equipment location issues.

The quotes includes all installation (condenser, pad, refrigeration
lines, condensate removal) and equipment *except* for evaporator/coil
(already installed) and electrical (to be done by electrician).

Quote A: $5400
- (1) 13/14 SEER Lennox model HS26-030 - 2.5 Ton
- (1) 13/14 SEER Lennox model HS26-042 - 3.5 Ton

Quote B: $5370
- (1) 12 SEER American Standard, model 2A7A2030A - 2.5 Ton
- (1) 12 SEER American Standard, model 2A7A2042A - 3.5 Ton

Which is better?
Is the costing reasonable for equipment and installation (as above)?

Thanks,
Jeff