Differences on the antec 550w?

How many different kinds of the 550w are there?

I've seen the true control the 1080 AMG and alot but i dont know which ones the best.

There are only three US versions I know of plus some special European versions of these:

TruePower True550 - standard ATX12V Power supply
TruePower TrueControl 550 - True550 with control panel to adjust voltages and fan settings
TruePower True550EPS12V - True550 with compatibility for EPS12V server motherboards

The 1080 AMG is an Antec case with a TruePower 430 power supply

The only Antec cases with True550 power supplies are two rack mounted ones that have the EPS12V server version.