urrmmm im gona say all of them
but i'll point out some feelings while im here

mike.... still was and will always be regarded as one of the best boxers ever

zab.. never got done for drugs etc.. he isnt as self destructive as he is jus disliked, plus hes young enough to sort it out if he picks the right fights etc...

galota just did a few weird things wrong which he easily could have stopped himself from doing .. i mean it wasnt drugs or break downs like mccall or anyone

peace