I agree with
@BGinGA.
First, I'm not fond of tournaments and rarely play them, even at meetups. I used to play tournaments all the time (that's all there was at the time) but have always preferred cash games. Unlike many players, I find tournaments to be much more stressful than cash games. Weird, I know.
My thoughts on antes . . .
Tournaments, HE-based flop games: Individual antes preferred. If BBA is required (why?), it makes sense to me that the ante would be equal to the number of players times the individual ante, rounded. This eliminates the concern over the full/short-table issues. If the BB can't cover both, then the ante is paid before posting the BB for reasons derived from stud games. For example, antes in stud games are posted first, followed by the forced bet, the bring (comparable to a blind). I like consistency.
Tournaments with a mix of stud, draw, and flop games: Individual antes. Again, for consistency's sake. Off hand, I can't think of any poker games with both antes and blinds in the same game.
I do like dealer antes in cash games, with everybody dealing exactly once per round. If a player is skipped, then that player deals out of turn. Everybody pays once.
If it's a dealer's choice game with game changes for each hand, I doubt that you'd see many players call a dealer-ante game.