either Pyramid, Legacy (if you want ultra high end...overkill as far as I'm concerned), Targa, Audiovox, and if you can find them...as they're very exclusive...Sparkomatic!

out of all those, id say memphis, us amps and soundstream are the best mentioned

Those Rodek amps were great, the new ones are not so nice but that true of alot of car audio makers products.
I think the models were the RA2150, RA2180 and I had a RA2300 running 2 RF Power 15's delievering a very underrated 2x300@4ohms
I liked the old RF amps too, I recently bought a Power 1100a2 from ebay but my trunk turned into a oven :) So I opted for a DD M2a with a matching DD S4.

Those people voted according RF Advertisements and seeing there crap in Future shop or Best buy .

I just love memphis amps its going to be my next amp , problem is its too big lol. I would choose Memphis over RF n Kicker

brand names
 

I would probably say it depends on what application is it for. Alot of those brand names has its high's and low's model - it makes it difficult to judge. Such as...there's True Technology for quality performance, American Bass for SPL, and pretty sure there's more favourites for other types as well. But for budget and an average listening...Rockford Fosgate!

Kicker and Audison

also like zapco,crossfire,old school coustic and rodek

RF all the way. I've had problems with every other brand in the poll except Memphis and US amps as I have never used them. RF I have used from 1993 to now with not a problem. The sound quality is the same for all decent brand amps if you set the gains correctly. It is the reliability that means the most.

Might be kinda low-end for you guys, but what about Exile?

I find it interesting that so many keep going on about sound quality when it's been demonstrated numerous times by many reputable testers that no human has been able to tell the difference between amps in a double blind test with levels matched. Do I have to mention Richard clark's name or the amp challenge?? He still hasn't paid out yet. You would figure by now that some golden ear would have won. I guess the differences are so obvious that your mind shuts down and doesn't allow you to hear them...lol. This only applies to SQ, not aesthetics, reliability, efficiency, design goals etc...

I have no loyalty, I pick whatever meets my needs. These days for me it has to be small. I don't give a crap what logo was slaped on these very similar asian amps hehe.