Both fighters are in my top 10 or even top 5 maybe.
But im going against the grain and saying Pierre, i feel that with the opponents they have both fought Trigg, Sherk, Penn.. that George has dominated those people more effectivly than Matt has.
for example i know Hughes beat trigg twice, very well, but Pierre dominated him like he was a child. Pierre put Sherk down which Hughes failed to do, letting that fight go to decision.
As for individual talents in different areas i think Pierre is as strong as hughes almost anywhere, his submissions are powerful, hes at least as strong in stand up (if not much better there) hes no slam artist as hughes is, but when George gets in his groove i think hes about unstopable.
The biggest way George would lose this fight is by getting thrown out of his game like penn did to him in there first round.
Hughes is one incredibly tallented fighter but he hasnt gone up against someone of Pierres level in a long time. While george has been fighting all the real title contenders.
Pierres fights since there first match
(imho a much more impressive set of fighters, or more impressive victorys [trigg])
hughes fights since there first match
(for the record thats only 1 real title fight in almost 2 years)
i like hughes alot but the ufc hasnt been giving him the fighters he should be fighting.