What can I say about Matt Morgan? The guy's got wrestling chops out the wazoo, he's a solid mic performer, and the guy can seriously emote and sell while in the ring. I think this is often an overlooked skill, people are often just concerned with whether a wrestler wins or not. Morgan is still interesting and enjoyable to watch even when he loses, because despite the physical size of this guy, you can feel for him when he gets a few good shots. Furthermore, TNA seems to be keeping the push for him in a two steps forward one step back sort of way.
I've always enjoyed Morgan. I liked the stuff he did with Abyss, I've liked the bits where he was trying to get into the Main Event Mafia, he may not have been one of the major "icons" of TNA, but he's been climbing and scrambling up the ladder and has really made a name for himself. Just look at how many posts and discussions there are here about him.
However, I think TNA is the best place for him. On the WWE, he'd just get lost in the shuffle with all the other superheavyweights, or he'd be ruined by their creative team. He's pretty much the giant of TNA and I'll bet he'll stay there.