Sylrae said:
Undead summoning/Controlling Cleric. Planar based cleric.
An Undead summoning wizard. For that matter, any sort of summoner.
I don't understand the phrase "planar based cleric". If you explain it to me I'll see what I can come up with.
The other things here are summon/control creatures. Those are assistant creatures, which as I said before were intentionally removed. However, I would like to point you at Astral Defenders(Cleric 9) and Knights of Unyielding Valor(Cleric 10). Both of them summon ghosts to fight for you. And wizards can summon a gigantic ogre, which is mostly intangible and invisible. The spell is Bigby's Grasping Hands(Wizard 15).
There are others, mostly look for the keyword "conjuration" and be ready to apply flavor.
Sylrae said:
Bard (a buffcaster who's quick)
Warlord, high dex and light blade. Some relevant abilities: Warlord's Favor(Warlord 1), which provides one nearby ally a +2 bonus to attack rolls against a certain enemy for one round; and Bastion of Defense(Warlord 1), which gives your allies either a +1 bonus to all defenses or a handful of temporary hit points. And note that the high dex you'll want for the light blade can easily make hide armor as good as chainmail, so you can have your full movement speed.
Sylrae said:
Druid (a nature spellcaster)
Fey warlock. Witchfire(Warlock 1) is that same unearthy flame that druids use for faerie fire, and Thirsting Tendrils(Warlock 17) and Thorns of Venom(Warlock 23) both call forth plants to do nasty things to your foes.
If that's not enough or not soon enough, recall that nature damage spells often use fire or lightning, wizards can throw around plenty of both of those. Toss a little flavor on Web(Wizard 5), making it roots growing out of the ground instead of webs appearing out of nowhere, and you've got the makings of a fine nature caster.
Sylrae said:
Barbarian(Some sort of berserking character.)
You mean a character who, when his back is against the wall, goes into a frenzy, striking out at all who threaten him? Like a fighter using the Rain of Steel(Fighter 5) stance?
Sylrae said:
A martial artist (unarmored as well)
Nobody's making you use a weapon or wear armor. In reference to the weapon keyword, page 56 of the PHB says quite clearly "You can use an unarmed attack as your weapon."
Making such a build viable is a little bit harder. I'd go with a ranger in cloth armor(which is only called armor so that it doesn't need a separate list of magic effects that can be applied to it) using the Two-Weapon build. All of your powers still work, because you're using a one-handed weapon(the unarmed attack) in each hand. Scale the dex score way up for the armor class, you'll be 3 points behind someone of the same dex in hide, but other Two-Weapon rangers will usually have higher strength and lower dex than you do, so you'll probably only be 1 or 2 points behind, which is annoying, but not immediately lethal. And you'd have to check with your DM on this, but the enchant item ritual allows you to imbue a normal item with magic. Running with the conceit that the unarmed attack is a weapon, each of the unarmed attacks you use should be enchantable. Of course, you only get that bonus when you are using the unarmed attack as the weapon in the power(no enchanting a weapon and the hand wielding it to get double bonuses

).
Whew! That one was fun. Got any more?
Sylrae said:
and the lack of any noncombat abilities is annoying too. I've played characters with little combat abilities who were almost all social, and they were awesome. I'm not saying they should have such a divide, but presently they have no real abilities for outside combat.
They noncombat abilities aren't gone, they're just reworked, with the addition that you don't usually have to choose between combat abilities and non-combat abilities. So now you can have characters who focus primarily on social abilities
and fight very well. Any character can get skill training and skill focus in all of Bluff, Diplomacy, and Insight by level 10. It's easy to arrange to have all of those by level 6, and possible to have them all by level 4.