What are you looking for? Do you have a budget? What about size? Do you like smooth low friction pads or do you prefer a little more stopping power?
That aside I'll throw some obvious recommendations out there.
Razer goliathus is probably the best product razer makes. Decent size selection. stitched edges, smooth or rough options and a decent price. One of the best overall entry level pads around.
Puretrack talent, Huge, thick and good if you have a rough or uneven desk. Non stitched edges are a big drawback.
Anything by qck especially the ones with stitched edges. these are pretty much the standard for mousepads these days. Faily smooth though not quite as smooth as the razer pad or the puretrack imo.
artisan shiden kai. Fastest pad I've ever used and feels like a very high quality pad. Very Very expensive and non stitched edges. I don't know for sure but it seems like it will last a very long time. Mine is white and unless you are sure your mouse can work on a white pad I'd try to avoid that.
Glass pad. Go to a local glass shop and ask for a 3/8ths inch piece of glass with beveled or rounded edges/corners with your desired dimensions and frosted on one side. Stick some pads on the bottom and there you go. It will last forever because the mouse feet won't damage the glass the same way they do regular pads. Very fast and constant feel. Requires a high quality sensor though. At 3/8ths think it's pretty sturdy and I have never worried about mine breaking. Mine was like 20 bucks for a 20 by 17 piece.