I'd check A5s 3 handed in the BB most of the time. Our hand is strong enough vs both villains ranges that we really don't want to fold them out and it plays really well multiway. I'm also really aggro 3 handed so I like using good implied odd hands like these to bring down my bring down my pfr and look a little less maniacal.

If your gonna cbet this flop I'd make it bigger. You're giving SB a chance to play perfectly against you here.