IndyPendant said:
Full-out Gish:
Paladin 2/Sorceror 4/Spellsword 5/Eldritch Knight 9.
The best WotC-only Gish-build possible, currently. Can't really be primary caster though, as you've lost a total of 5 caster levels.
I have a player whose PC is currently:
Fighter 2/Sorceror 4/Spellsword 4
I suspect he is going for:
Fighter 2/Sorceror 4/Spellsword 5/Eldritch Knight 9
I think this type of build (but with Paladin for Divine Grace) is preferable if you want to be a combatant type who can cast spells.
20th level:
BAB 16, 7th level spells, +13 Fort, +5 Reflex, +11 Will (plus Divine Grace bonus)
If you want to be a spell caster who can fight, I think that the following build is better:
Fighter 1/Sorcerer 6/Spellsword 1/Eldritch Knight 10/Sorcerer +2 (or some other PrC)
20th level:
BAB 15, 9th level spells, +13 Fort, +5 Reflex, +11 Will
The downside of this second build is that you cannot wear heavier armor, even Mithril, without the spell failure chance. However, you can wear a magical Mithral Chain Shirt and carry a magical Large Shield and still have a pretty good AC (better than a Fighter using a bow or a two handed weapon). Throw a single spell like Mirror Image or Greater Invisibility on top of that and the PC is both an effective Fighter and an effective spellcaster.
Not the best spell caster in the group giving up two levels of spell casting ability, but solid.