That's because he hasn't had a Palit card yet- lawls.
Being from Palit I would say that, unless it's a reference design, there is a significant difference between what companies produce. I also don't think there is anything wrong with supporting companies because they do the right things when it comes to gaming and enthusiast communities as long as you're still getting the product you want.
For instance, the Palit 9600GT Sonic has dual dual-link DVI ports, HDMI, Optical AND DisplayPort all on the same bracket. No other card in the world does that now so I would count that as a significant difference.
Some people say you can't listen to me cause I work there and others say you can listen to me because I work there. I suggest you do both and check around, read some reviews and do your homework.
Every time you buy a non-Palit card, God kills a kitten.