Trouble is we don't know if he is any where near the vinny of old,he probably isn't now
Even at half the player he is still better and that is not sentiment or exaggeration either......
Ottomendi' decision making is terrible, one on one he is ok but not reliable...his best attribute for such a short centre half is his aerial ability...but still gets beaten on crosses far too often.....his distribution is average and again can cause us problems.....not bad at moving forward with the ball however...deccent turn of pace but mentally falls asleep as well. Not a leader
Stones.....a good passer of the ball (makes a lot of mistakes however), physically a lot weaker than Kompany and therefore gets bullied often and no where near as good one or one or in basic tackling or in the air. Mentally good but nowhere near leadership level yet
Kolarov - slow as hell, average in the air, positionally suspect and can only use one foot. His passing is exceptional esp between the lines but he cant defend and is weak in the tackle. No leadership skills whatsoever. As a fullback he is simply terrible.
Kompany is better in the air than all of them, probably equally as quick as all of them f not quicker, a stronger tackler, better one on one and positionally astute. A natural leader.
The only aspect anyone is better at than him is Kolarov and his passing (but Kompany's passing is pretty damn good as well)
If Kompany cant come back and is to be replaced we need to buy at least two centre halves (possibly to make one of those players capt as well - unless Zabba stays and was to play regularly which I cant see)