Which card grading company is the best?

Mephisto

I was just curious as to what card grading company is the best. I know PSA and BCCG are the better ones but what about all those other card grading services? I've noticed on Ebay cards graded with other companies besides the two I mentioned, sell for next to nothing and was just wondering what's going on with that. I have some cards I want to send in for grading but don't know which company will make these cards worth more in the long run. Any help would be appreciated.