I don't think it's that simple. You need to narrow it down. You can't really compare a coin 1on1 to a cards 1on1 and you can't compare a basic 1on1 concerning how to handle cards to, say, the MacMillan Switch.
I just picked up both of Tony Chang's and they're both great.
One of the first 1on1 i've purchased is Blind by D+M, i like those type of card effects. Simple and direct. And so far i would say it's still my favorite among the others ...