I think Elvis is slightly better (based on both conventional and advanced stats) although, weirdly, I think Korpi "looks" better in net (from the sense that he seems more composed and looks like he tracks pucks better). But the stats for two seasons now (again both conventional and advanced) say Elvis is better, and I think Elvis on his A game > Korpi on his A game.
With that said, you can't really "go wrong" with either. The trade should probably be determined on a number of factors such as return, finances, etc etc. I think both goalies are are reasonably close to equal, though. BUT with that said...
Not everyone here might agree with me on this, but the reason I watch sports is to be entertained, and for that reason I'd rather keep Elvis (and here's the catch/where people might disagree...) even if he was slightly worse (and again, I don't think he is, as I think he's slightly better than Korpi). I'm not saying I'd rather Elvis if Korpi was noticeably/significantly better (which I don't think anyone besides bus would argue) but even if Korpi is slightly better, I'd still rather Elvis because he's more fun, and I watch sports for enjoyment/entertainment. Would I want a slightly worse doctor if I liked him more? No. Would I like a slightly worse senator if he was more personable? No. Would I want a slightly worse athlete on my favorite team if he's more fun/entertaining? Sure! That's what I feel like here.
