Pro Advice- What is the best value system for a new install?

I am looking for some opinions about what system is the best value for a new install (3 to 6 ton). Is there a real nuts and bolts difference between brands or is it all marketing? So, to the pros reading here- what system would you install and why. And don't just tell me the brand you install! Thanks!

 

You're going to have to narrow this down somewhat for it to make sense.

 

The installer you choose if far more important than the brand you choose.

 

Huh?

That's nowhere near enough info to elicit informed replies.

Go forth and surf here and at GreenBuildingTalk; return only with specific characteristics of your proposed system and the various alternatives under consideration.

 

You might find the shoppers checklist (stuck to the top) helpful.
Many of us here share the opinion that brand is down the list of most important things.
Good luck,
Joe