I've already gone on record as saying I could probably do without Cassell or House next year. That said, I'd probably prefer Cassell if forced to pick one for a few reasons.
1) Was Same selfish? I'm not so sure. If he was, why did Doc keep playing him? It wasn't until Sam started to miss a ton that Doc really took him out. I wouldn't be at all surprised if Doc told him to shoot, especially considering the guys he usually played with when he was on the court. A lot of the times Cassell WAS the offense. And I know some of you will point to earlier in the season when the "green" team did well without any of the Big Three on the court. But guess what, it's the playoffs and defenses tighten up. The likes of Brown, Powe, Posey, and House aren't going to create offense against a good defense.
2) House really is just an undersized shooting guard. If that's the case, why not just get a regular sized one? I mean if all we really want Eddie to do is come out and hit treys, why not get 6-6 guy who can hit threes? As it was, Ray or Paul ran the offense anyway most of the time he was in the game.
So like I said, I don't love Cassell, but I think he might have been slightly (very slightly) overly criticized and I think his ball handling skills at least serve a purpose.
But if there was a better option out there, I wouldn't be sad to see them both go.