Hopkins, to the extent he can find himself down on points by the middle of the fight. And he often doesnt realize it or believe it because he is so accurate but the judges dont like his inactivity. I wouldnt say vitali at all, he doesnt hardly ever loose opening rounds. JMM probably 2nd after Hopkins but he is old and also fighting bigger guys so he can get a pass for taking time to break them down. Floyd only had problems with Zab and DLH. Otherwise he rarely looses the opening rounds. I dont count being in control of the Mosley fight by halfway into round 2 as a slow start.
Bute doesnt count. we are taking into consideration the fighter actually fighting live and top competition.