I'm quite a big fan of CM Punk, but I'll admit his PWG run was extremely underwhelming. None of his matches were good+, usually they were "okay" at best. Even his match w/Super Dragon at RFTS (Which I had high hopes for) was pretty dull. As was his match w/Corino, and his match w/Reyes. However, his ROH work (Particularly his Raven, Samoa Joe and Jimmy Rave feuds) are excellent and I definately recommend checking them out. Punks heel reign in ROH in the summer of '05 was also very entertaining.
Teddy Hart is very athletic and he has some crisp moves, but on the whole he's over-rated. At ROH 'Main Event Spectacles' (November 2003) He was involved in a 'Scramble Cage' match, and after the match (Keep in mind, it was the Backseat Boyz who pinned Special K to win the match) Teddy Hart went nuts, climbing the cage and doing a shooting star press onto a few workers who were lying in the ring after the match.
This wasn't planned at all, and so it was very dangerous. Teddy then climbed the cage again, and hit I think a corkscrew moonsault to the floor, where wrestlers had to jump in to catch him (Again, unplanned)
Then after this, Teddy got back in the ring and climbing each side of the cage, playing to the fans and then doing a landing moonsault. He stopped and threw up, then went back up and did another moonsault. ROH Booker Gabe Sapolsky then came down to ringside and yelled (At I think Jack Evans) to get him outa there.
This lead to the entire locker room hating his guts, with Carnage Crew and Samoa Joe all wanting to kick the shit outa him. Teddy cut some promos on the net and became the hottest topic of indy wrestling.
ROH then bought Teddy back for Feb/March 2004 "At Our Best" for a 6 man mayhem match. Everything was going okay then, when Jimmy Rave had Sonjay Dutt in the crossface, for no reason Teddy Hart climbs the top rope and does a shooting star press senton onto nobody. They stopped using him.
As for PWG, well....let me just say buy "PWG: The Musical" because the Hardkore Kidd/Deranged+Lit match is my FAVOURITE comedy match in PWG history. My god, there was SO many blownspots and botches, all kinds of fuck-ups and the commentating was HILARIOUS....so yeah. Buy iy
And in closing for my thoughts on Teddy, he's got some decent highspots but he's nothing special.