Not wanting to open a can of worms but,
different strokes for different folks.
Personally, I've found the MEZ4 rear to be excellent - good grip levels and I'll get around 10-12000km from it. I only managed 7000km from the ME1, and that was pushing well past the wear indicators.
A mate of mine swears by the Pirelli range of tyres.
B6Mick reckons Shinko is the go.
Unfortunately there isn't really one answer. Do what I do, talk to as many people as possible and try and match your riding style with someone elses and try the tyre they use.