Okay, so I tested those two combos of yours, Oreo. Sadly, I have to call BS on them both. Yes, they both work on paper, and it is physically possible to make them happen in the game (WR B BE is still techable, by the way), but the spacing, angle, and wall placement required to do either of them is completely unrealistic for a real tournament match.
194 damage: vs BT'ed opponent, 44[A]. AA BE. 3B(w!). 1A. A+B(w!). 8B+K. BT B+K. iWR B BE. BT B+K. CE.
For this one, there are several problems. Firstly, landing 44[A] on BT is insanely hard except against Voldo. Secondly, 1A does NOT connect after 3B W! unless the 3B is at a very specific spacing that causes the opponent to wallsplat higher up on the wall than usual. If the 3B goes off while the opponent is actually close to/touching the wall, 1A will NEVER connect. Thirdly, how the hell are you going to set up 44[A] so that your opponent is automatically standing at that magical spot for 3B after AA BE? Finally, iWR B BE is side techable after BT B+K.
187 damage: CH 1A. 4K(w!). 44[A]. AA BE. 3B(w!). 8B+K. BT B+K. iWR B BE. BT B+K. CE.
CH1A, 4K, W!, 44[A], AA BE, 3B, W! definitely works. the 8B+K afterward does not. Again, setting up 8B+K off of 3B requires perfect spacing that simply isn't going to be viable in a real fight. iWR B BE is still techable to the side, and is by no means guaranteed.
MYTH: BUSTED
Here are some practical alternates that have significantly lower damage, but actually work.
*Optional tech trap attempt
Highest meterless wall combo:
4A+B, W!, 4A+B, W!, 66BB, 33_99BB 110-112 damage
Variant with better setup for followup tech trap: 4A+B, W!, 4A+B, W!, 66BB, 1B, (66 A+G_B+G)* ~105 w/o throw
Highest 25% meter wall combo:
44[A], AA BE, 3B, W!, 4A+B, W!, 6BA (AT), 6BA_6KK(character specific), (66 A+G_B+G)* ~151 damage w/o throw
Realistic variant without 44[A] startup: 4K, W!, 44[A], AA BE, 3B, W!, 4B B (opponent left standing next to the wall at a 4 frame disadvantage) ~122 Damage
Highest possible damage wall combo without ridiculous spacing:
44[A], AA BE, 3B, W!, 4A+B, W!, 6BA (AT), CE - 170 damage
Oh, wait... wasn't this one posted earlier by TiZ?
Leixia's wall damage is good, but not as good as you would have us believe.