For what it worth I think he could be a shrewd signing
If you're going to play 4-2-3-1 it is vital the 1 upfront is a mobile, strong powerful type who can keep hold of he ball and play in others and he seems to fit the bill for that at least
However because he is not massively prolific it would put extra emphasis on those playing off him to chip in with a decent amount of goals - Windass, Musaba, Gassama or whoever
As to be being no different from others:
Smith despite his height is average at holding the ball and playing in others, but does have a knack of bagging a goal
Gregory is decent at link up play but isn't physical or mobile enough now to play as one up front. And his best spell in the Champ (at Millwall) was actually playing off another striker
Fletcher is I think more of a run in behind type and is looking well off the pace anyway
I'd prefer better quality but do we have the budget for that?