Followup Armor Spikes and Polearm: Whirlwind Attack

[Riuken]

I have a fighter I'm playing in a game who is largely based around a combination of whirlwind attack, lunge, a bardiche, and armor spikes to be able to make a single attack at his highest base attack bonus against all creatures within 15 ft. (potentially 25 ft. if enlarged). I've seen that TWF with a 2handed weapon and armor spikes is out, but is using them both in whirlwind attack out as well? A few points:

1) Technically, I'd be gaining extra attacks on adjacent enemies I couldn't normally target with the reach weapon (my weapon of choice).
2) Whirlwind attack specifically calls out "each opponent within reach", which sounds like it falls within the realm of "possibility to make an attack of opportunity". It has been stated that attacks of opportunity can be made with both a reach weapon and armor spikes.
3) Though not any part of RAW, and maybe not even RAI, whirlwind attack is a very difficult feat to get that isn't even all that stellar. I don't feel like being able to attack everything within 10 ft. (with some at much lower damage) is remotely game-breaking. The extra reach of lunge is already paid for in the loss of AC. I only bring this up because I don't think I'd ever consider getting whirlwind attack if I couldn't use it beyond 5 ft. without another feat, magic, or a special race. The prereqs are just too steep.

Relevant feats for reference:

whirlwind attack:

Whirlwind Attack (Combat)

You can strike out at every foe within reach.

Prerequisites: Dex 13, Int 13, Combat Expertise, Dodge, Mobility, Spring Attack, base attack bonus +4.

Benefit: When you use the full-attack action, you can give up your regular attacks and instead make one melee attack at your highest base attack bonus against each opponent within reach. You must make a separate attack roll against each opponent.

When you use the Whirlwind Attack feat, you also forfeit any bonus or extra attacks granted by other feats, spells, or abilities.

lunge:

Lunge (Combat)

You can strike foes that would normally be out of reach.

Prerequisites: Base attack bonus +6.

Benefit: You can increase the reach of your melee attacks by 5 feet until the end of your turn by taking a –2 penalty to your AC until your next turn. You must decide to use this ability before any attacks are made.

Thoughts, debates, 2cp's, official answers, and FAQs are all welcomed!

[blackbloodtroll]

Not two weapon fighting.

Not effected.