To the OP:
The ToEE weapons rule supreme for levels 7-12. Nothing comes close.
I slot a Ghostbane augment which seems to be the only real "Achilles Heel" at that level range.
The AoE burst damage also scales with a weapons crit mod (maxes out at x4) so the better the mulitplier, the better your AoE gets.
My TWF Dwarf Ranger with ToEE Heavy Picks was clearing entire rooms of trash well into Gianthold. A single 20 seems to proc both weapons together, so it strongly favours TWF.
Of course, for THF at Lvl 10 you have Sword of Shadows and then at Lvl 12 there's Greensteel, which is still better than basically everything else across the board.
For Reaper content, Vorpal/Disruption/Smiting are the new black. All things old are new again.
I did make a ToEE GxBow, and had the Leverage, and found they were both "just OK". Not bad, not great. YMMV.
I can't speak to the repeaters (since I never got one to drop), but at Lvl 6 you get the Scoundrel's Heavy Repeater which has a Red Slot for Ghostbane and higher base damage, and Acid (a great damage type).
I rode that like a rented mule for 6-12 until I got Greensteel, and at 14 switched to Fatal Flaw. Now maybe I can switch to the (X) Boltslinger at 15 as well (probably light, which has Improved Vorpal).
The ToEE arrmour is nice, but you can slot a Moderate Fort augment at Level 4 which kind of makes it moot, but the (X)element absorption, +2 Resistance and Dusk are nice if you don't have those things elsewhere. Like Asheras said, best for light armour or robes.
FWIW: For Heavy Armour, the oft overlooked "No Worries" armour from the Birthday event has HILARIOUS armour value, green slot, insightful fort, and no skill check penalty. And you can get it at Lvl 5.
Bonus: It's gold, black, and cool looking.
http://ddowiki.com/page/Item:No_WorriesFor Epics, fuck it.
ToEE is not worth the grief.
You'll either level past it's usefulness, will have Thunderforged, or won't need it at all.