My second is that we've never seen someone with regeneration be able to control it;
FWIW, I don't think he did control his regeneration, per se. Sylar said something like, "I squeezed some extra blood out" -- I think that meant that he used his telekinesis to literally squeeze more blood out, and keep the wound open. That's how I interpreted it, at least; and I thought that was an awesome idea.
I actually liked this episode more than the last couple. Probably mainly because Danko got played like a fiddle by both Sylar and Matt, and I am definitely in the "Danko must die" camp. However, I thought the whole "he's really lonely and just wants to be loved (by hot Russian 'escorts')" added a whole new level of lameness to his character, thus increasing the "must die" quotient.
I thought Bennett was a bit stupid the way he got played, but it was believable to me -- his family life has already been established as one of his weak points, so manipulating him that way worked for me. That said, I'm not sure why he didn't shoot the goons and then shoot Danko; he's not previously been terribly scrupulous. But, feeling generous, I'll chalk it up to shock at being completely pwned.
I really must've been in a better mood, 'cause the Hiro & Ando comedy show didn't bug me too much (I thought the Japanese-Texan truck driver was kind of amusing). Perhaps more importantly, they
got where they were going. OTOH, the "baby magically knows its daddy" seemed a bit much; but hey, maybe the kid's telepathic, too, and really does know his daddy. Probably not; probably just sentimental stuff, prepatory to getting Matt back together with his wife.
So, Coyote Flats -- what's with the mass graves full of bullet-to-the-head executions? A case of, "Yeah, we tried this 'kill 'em all' thing early on, and it didn't work out so well"? Even if that's it, I'm not seeing how it helps them with the current situation. Was Danko's daddy an early victim or something? I really hope Danko's not going to turn out to be a Petrelli cousin or the like.