Hey Limz,
Make two fighters. One with a 2h and the other sword and board. Try to keep them balanced in gear. Not sure how you would handle skill point allocation, but I would love to hear feedback on the comparison. Do you plan on min-maxing for survivability? I think I'll try this as well.
I haven't played two fighters in the same group. My experience is from two different games. It just felt like my first fighter (2h) was way more capable than my second (shielded.)
Right now I am using a dwarf and the entire idea is to soak up as much damage as possible while dealing as much CC as possible; it's the next best thing to taunt. Also dwarven racial gives at least an extra CC option.
I am turning Red into a 2H, it's suboptimal but whatever, I am more or less seeing if I can get the dwarf 'tank' to disrupt and carry the party.
Because the entire goal is to soak in as much damage as possible I am going to be focusing points primarily into magic armor/vitality with a lot of 1 point dips; my usual 1 point dips will be in warfare, scoundrel, necromancy, aerotheurge/hydrosophist, and the rest will be split between one handed and magic armor most likely.
So, I'll have on average 6 AP to work with plus pawn or pawn + warlord.
My stat allocation is going to be split probably 3:2 str:memory. I may need 2-4 points into wit so I can initiate combat or at least be second in line. I don't think I'll need con but I might and that may take a second play through.
So most of your magic/phys armor comes from gear and yo can expect 100+ from frost armor and fortify, so I am aiming for either 250/300 (unbuffed) or 150/600 (buffed). Most likely though I am going to focus on magic armor because again the goal is to do as much damage to myself.
Abilities will do more damage than auto attacks, so sacrificing str for memory is perfectly fine, I can probably take up to a 15% loss and still come out on top due to disruption and whatever else. Furthermore, I am speccing necromancy early for Shackles of Pain so I can bombard my main with all the nukes.
The game plan is to match opposites; tank + 2H will dive the back line while the casters push out the front.