My male perspective on the 2PM crew after rewatching the two episodes with SNSD:
For some reason Junsu seems like some kind of unholy male combination of Tiffany and Jess. He seems to have cold/blank expressions like Jess but he has a long face like Tiffany? I'm glad he didn't pair up with either of them because it would've felt like incest somehow.
Jaebum is awesome just for inadvertently coming on strong to the Ice Princess. I like that he seems similar to Taeyeon in that they have the whole mellow, non-attention-whoreish leadership thing going on. And they both look like the tiniest members in their groups too, haha.
Nichkhun was sort of bland. Didn't find him memorable or particularly entertaining. He reminds me of the Sixth Sense Kid due to his epic eyebrows, which may be a plus or minus depending on your type.
And Chansung has some pretty bizarre expressions when the camera's not focused on him. I swear he looks stoned during certain moments when he's in the background

. Liked his reaction double-teaming with Boom. Overall he seems like a good sport.
Taecyeon's awesome. He made me laugh with his "YES I WILL" in the middle of Junsu's attempt to seduce Seohyun. And if he really did rename Jaebum's file the kid is a comedic genius. I actually liked the pairing with Sunny a lot as they both seem like the mischievous, prankster type who can cheer up their group. It wouldn't have occurred to me that they'd be a good match, but in actuality the more I saw of them the more I thought they suited each other.
Junho. Wooyoung. Yeah I can't even really remember who they are.
By the way did anybody watch the Maybee's Volume Up Radio video? It was kinda fun, but Hyoyeon seemed to make things REALLY awkward at times. Not to hate on the Dancing Queen, but I've noticed that she's definitely tried to assert herself more during shows and stuff by speaking up. Which is good. But sometimes it seems like she's talking just to talk, as she tries to butt in with anecdotes and stuff which are just unrelated to the current topic or are flat out uninteresting. Not to mention saying her own name when the girls were asked which member of the team they'd go gay for. Or trying to say that she likes to care for others over herself and then having to admit that she doesn't ever really show it (which defeats the whole idea of actually caring for others).
Honestly, I like Hyo a lot as I think she's probably one of the more down-to-earth members. But I just think she needs to figure out a way to naturally be herself on camera, as she's coming across as blatantly image-conscious in her recent attempts to establish her presence in the group.