Melee is (imo) strong if you go dual wielding, but I don't like dual wielding, so that's not a option for me. I prefer sword & shield (for the boosts in spirit and/or vitality on a shield if I find such) or a 2-handed sword for melee attacks.

But Priest Skills are all big big fun biggrin
By the way: playing as a Priest I find the game easier, even on nightmare difficulty, than with all other builds (even without putting charms in empty slots, and I can place many charms if I wish!).
But I always invest some points in Stun Arrows(2 p), Healing(1 p) & Lockpick, but other points go to Priest Skills and many extra's are coming from skills on Yewellery etc ... smile
Only the Aleroth Archmage Set (the Belt + at least 1 other of that Set wearing) is important for me . Why ? Because of it's super boost to MP regeneration smile !

Ronja, the Ranger Priest, who has Priestly-big-Pleasure !

On 7th of february 2015 : I start a new adventure in the Divinity world of Original Sin,
it's a Fantastic Freaking Fabulous Funny ... it's my All Time Favorite One !