Sure, he's been one, so has Tocchet,Gary Roberts,Shanny,but I'd place leClair in that group, as he is so strong, and difficult to knock off the puck.He can also hit like a train.You don't have to be nasty to play with power.There are some smaller players who played well in traffic,went to the net, bumped and grinded it out along the boards, and put up good numbers,but didn't steamroll people.Think of Verbeek,Dineen,Ciccarelli.
Bob Gainey couldn't score,but he sure could take the body and chase down a player with abandon, and make D men hear footsteps, which are things that a "powerforward" are thought to do.The term seems to be one that has a floating definition.