I've also been rather lucky (except one or two stupid sellers) so listing the ones I'm happy with would be impossible.
It's probably only 1% of the sellers that ever pose a problem. I've always gotten my items the only things I have had disagreements with is ridicilously overcharged shipping costs (like 400% or so) and some sellers for who "Mint condition" equals someting their kids have been at with crayons. :-o
To sum it up:
Ebay's a great place! And the ebay sellers are generally great too. :-D