Warranties usually tell you a lot, the pool with the 30 year bumper to bumper waranty is likely built much better than the 15 yr warranty "on major or selected components".
I really don't think the SS skimmer/return panel is necessary - many manufacturers now make their pools with them, it really just tells me something else about their remaining wall structure.
Go with a reputable manufacturer over which reseller you will pick - resellers just get the item to your door, manufacturers have to stand behind it.