I would try everything to land OEL because IMO he´ll be or already is a very special player, and yes, i think we are indeed looking at the next 50 - 60 point swedish elite D. I like Smith and the opportunities he´ll get, but hasn´t shown anything yet so i´d take OEL over him any day of the week.
I don´t think you are over valueing granlund as he should be fantasyrelevant as soon as a season starts, and give him a year or two - he´ll be a beast IMO. His upside is just insane. He is one of my favorites, so i might be over valueing him too, but i really think he´ll be awesome.
14 team full keeper dynasty league (H2H Points-Based)
G, A, P, PPP, SHP, +/-, PIM, SOG, FOW, FOL, Hit, TK, BLK, GWG, GA, SV, SHO, W
C: Getzlaf, RNH, Tavares, Granlund, MacKinnon
LW: Ennis, Perron, Filppula, Jokinen, Bergenheim
RW: Brunner, Okposo, Wheeler, Selanne, Alfredsson
D: Bogosian, Carlson, OEL, Fowler, D. Hamilton, Garrison
G: Smith, Bernier, Ramo
Farm: Barkov, Drouin, Ristolainen, Etem, Pulkkinen, Armia, Teräväinen, J. Gibson, F. Andersen, Markstrom