A + B) Don'tbother with the fighter + Daring warrior combo; I know people love it, but I just don't think it justifies crappy skills and one extra feat (technically two frin fighter 2, but then one has to go into daring warrior...). I'd go Swashbuckler / Rogue with daring outlaw to get some sneak attack dice, make that TWFing worthwhile. That'll get you nicer skills, some sweet abilities, all that jazz. Maybe 3 / 3, go into the Dervish. Remember, TWFing without a source of extra damage (like sneak attack) really isn't so sweet.
C) Dex and Int are easier to apply things to, apply to more of your skills, and are simply more mixable. Plus, str goes to attack/damage, a few skills, and nothing more; int and dex are much more useful, and I'd drop str to a 10 or so, knock cha down to 14, and pump up your int score. That's just my bias, thoughl if you want to play a stronger fighter, and not the quick and calculated, light fighter, that's your choice and a fine one to build on. As is, I'd go with the above, but it's really about what you want to play; you can make almost any idea work for you in the end.
D) Scout is nice, but if you wanted to max that out, go with some ranger levels and make a skirmishing dervish build. Like sneak attack, but as if it were meant for the want-to-move dervish; most thematic and mechanically pleasant option, not hard to pull off either. Check out the ranger or scout handbooks for more info on the ranger/scout combo.
And yes, an intelligence based swashbuckler or warblade with wizard (or an int based caster) thrown on is a friggin amazing gish. Remember to not take too much of the melee, cause if you're gonna go spells, make them rock.
