Ok, so here's what i'm thinking for a Bladesinger.
Elf, 12 Wiz EK, 8 Fighter, focused on melee.
I would build around Harper and Int to hit/dam/saves
SWF (I am hoping the orb in off hand will help compensate for losses from no TWF but i've never played with one)
Enhancements invested heavily into Harper and EK to Tensers, stack INT, and Longsword buffs from Elf.
Use spells to buff since i'll prob miss out on some Action boosts.
Will wear heavy armor and work towards no spell failure through harper/elf/EK whichever. (mixed with elf plate or something looks like spell failure not a big deal)
Someone posted the idea of using swashbuckler for sonic damage to get the bladesong effect but i just dont see 2 levels of bard adding much since i'm running heavy armor.
That gives me 3 spellsword toggles, tensers, int based attack/damage/saves, weapon crit buffing, a bit of melee AOE, and just some fun stuff from elf like see invis all the time, etc.
I would be melee so i'm thinking it isn't as necessary to have high DC's for damaging spells.
All this is based around what i know of D&D, not DDO so if i am waaaaay off on something please let me know. If this is totally gimp, let me know. Otherwise it seems like a fun concept.
If your still reading... I'm contrasting this to an INT based Assassinate Rogue 18/ 2 tempest character that i was first thinking of playing. While I'm thinking Assassinate rogue would be the 'easier/ straight forward' thing to play I just really miss Bladesinger. But, if anyone thinks there is no contest between output of an Assassinate rogue vs This Bladesinger concept please say something. I love flavor but i don't want to be a total gimp.
Thanks all! here's a rough total of enhancement if you want to see what the output would be without looking at FEATS: has another 4 points left to spend.
to hit +2%
Longsword specific +5 hit/ +4dam
Int +6
Int bonus to hit/dam/saves
3 spellsword toggles for +9d4 elemental dam/hit
Know the Angles for int bonus damage
Doublestrike +7%
Healing amp: +10
PRR (when shield spell on) +10
Confirm crit +3
Crit dam +3
Force spell power +20
Universal spell power + approx 16%
Melee power +2
Arcane spell failure -20%
Weapon attacks gain "On Vorpal" from Kensai up to +10 enhancement (not sure if this stacks with harper enhancement)
Auto see invis, auto search checks at -4,
Tensers for full BAB etc.
can fill out with some more buffs to longsword hit/dam or doublestrike/ or some survivability if needed.