DISCLAIMER: I am an Oilers fan. Figured I should put that out there
I agree with the apples to oranges comment wholeheartedly.
As it stands Schremp is a power play specialist, a shoot first player, an offensive dynamo. He has suspect to average defensive abilities (depending on the game and the set of eyes watching him) however by all accounts he has made great strides in that area. And remember the old adage "defense can be taught."
With Perry he is certainly a more complete player. He is a playmaker, a multi-tool guy (a five tool player to use baseball terminology), but not as explosive or dynamic as Schremp. His game is a measured one, a very smart one, and by all accounts he is a great student. I don't think he has the same upside potential as Schremp, but the flipside of that coin is he doesn't have the same downside potential either.
I think it is interesting to note that in both cases, the player is exactly what each of their organizations need. The Oilers have a lot of well rounded, good players who aren't elite talents (Smyth, Torres, Dvorak, Stoll, etc.) while lacking the legitimate high end, star potential talents outside of Hemsky. On the flip side, the Ducks have a bigger need for the top six everyman which is what Perry is IMO.
Were I to look for comparisons (a fruitless but enjoyable task), I would equate Perry to a Jason Allison type player, nothing overwhelming but a consistent point per game guy who makes his teammates better, while Schremp is more of a Martin Havlat, a pure offensive talent with a tendancy for hotheadednes which will no doubt get him in trouble every now and then.
Not really comparable players, but very complementary IMO.
My 2 cents...