Tony hates to see guys pull guard, he feels that if you get stuck on bottom, you should be escaping instead of letting the guy get into your guard.
As far as takedowns, it all depends on your strengths. Whichever ones your good at.
don't see the original question. imo, it takes as much time/energy to "pull guard" as to fight off the takedown. i'd rather be on top. i don't care what position he's in on top, i want to get out, and not have him stay between my legs.