After playing with eslavona and long eslavona (on MW version) I have to say that both are ok. I think sidesword is always a nice and unused sword. Why? People don't care about its power. Having a 4 attack (thrust) make you more unpredictable. And another factor is speed bonus. You will thrust a lot of people running to you. If you hit them on the head, it's an instakill. With enough powerstrike, having 30 cut dmg is enough. You won't glance. And stabbing is just skill. By the way, i'm talking about MW version.
My last suggestion is adding +1 cut damage on eslavona, l/eslavona and sidesword. Three are expensive swords and deserve a little high cut dmg modifier.
Side sword: 28c, 27p
Eslavona: 26c, 29p
L. Eslavona: 28c, 27p.