You're missing a couple of quote tags. I'll address your second party proposal when I have a bit more time.
The AC on #1 won't be that high until you add the monk level and take the XP penalty. The ECL is somewhat counterbalanced by having 4 characters instead of 6, but adding an XP penalty to it is just too much for my taste. Additionally, I rank Dreadmasters as second highest priority characters to be shielded in HoF (behind sorcerors). While this character should be hard to hit, a disrupted enchantment spell could mean reloads.
As for your #2, you already have 18 Int, so I don't think it's a big deal to spend one level-up stat point on Int. Look at it this way: lvl 9 spells vs 0.5 of an AC point. I'll take the spells, thank you.
Three pally levels, 2 fighter levels, and 2 rogue levels will give you enough HP to start with - by my count, that's 76 HP at lvl 7, +6 for every illusionist level. With 18 Int, don't worry about skill points. If you have to short any skills, make it Hide and Move Silently. Those aren't all that useful after the first chapter or so anyway.
Now that I look at it again, I would tinker with #3 a little bit. The class distribution and character role is fine, but the stats could use a bit of work. I understand why you've pumped Int, Wis, and Cha, so leave those. I hate really low Dex, so I'd be tempted to raise Dex to 10, taking 2 points each from Str and Con. The idea with this character is never to be attacked anyway, right?
For #4, who is going to be casting Cat's Grace? #2 should be using almost all 2nd lvl slots for Mirror Image. Are you going to take Cat's Grace with #4? My thought is that you'll be waiting a while for it, because Web, Mirror Image, Melf's AA, and maybe even Scorcher or Snilloc's are higher priority. I suppose you could get #3 to cast it, either through the bard spells or by adding the mod for additional druid spells. I might be inclined to just even out the Wis stat. A slightly lesser penalty to Will saves in the early going may be of more help that a chance at a +1 BAB later on.