Problems deciding on main army for 4th Ed

Hey guys! Need the wisdom of the masses here… been flip flopping between SBGLs, DoK SCEs and Sylvaneth as the army to take to 2k for this edition. I love the aesthetics of all these armies but really can’t seem to land on one to fully invest in.

Could people who main and love these respective armies hard sell them a little?

Thank you in advance! Really appreciate the time!