Hmmm .... all kind of melee combat I find difficult in the (final) battle ... so I used mostly magic + melee or magic + ranged or magic + melee + ranged combination.
But I never specialized in 1 specific melee combat skill, for example "Dual Wielding" or "Sword and Shield Expertise" or another "expertise" in a kind of weapon ... (see the Dragon Knight Skills) ... or taking skills like Rush Attack, Thousand Strikes, etc (Warrior Skills) ...
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 !