Inzer Z-Iron Wraps.
They got no equal when it comes to longetivity IMO.
Titan Titanium and Titan THP's are both very hard, but will only last you a few lifts, before getting much worse in performance.
Titan Titaniums are slightly softer than the THP's, but will last a little longer than the THP's though.
Metal Blacks are the wraps that currently has the most rubber in them, I gather.
Haven't tried them myself more than a few lifts, didn't like them that much, but to be honest, didn't have them extremely tight wrapped then.
Also, get one of these, or a similar, it will help make it much easier to put on the wraps: