@geekryan: Actually, the only one of the five I listed with robotic parts is Mother Brain. That being said, if Sidious is too much for this tourney, Dark Samus and Gorea probably are too, so I think I'll take a pass on this.
@geekryan: Dark Samus's entire conquest in Metroid Prime 3 is her trying to infect the galaxy with her Phazon to mind-control everyone, though I guess if that doesn't count under telepathy/psionics, that's understandable. Similarly, Gorea's story is that it waged single-handed war against a galaxy of psionic beings and began stealing their power, and Gorea almost won until they performed an essence transfer assault as an entire race to seal Gorea's power.
It might seem like neither's primary power is telepathy, but that can largely be attributed to the Metroid series's protagonist, Samus Aran, having a suit, powers, and training all by the powerful psionic beings, the Chozo, and is thus defended against their mental abilities. It's like how Psylocke is just as known for her mountain-level TK and martial arts ability as she is for TP, or how Darth Sidious knows a ridiculous number of dark-side and light-side abilities, yet telepathy was key for his plans. Even then, most of Metroid Prime 3 is Samus fighting the enthralled forces of Dark Samus, and throughout Samus's fight with Gorea, Gorea was draining and using the psionic essence that previously sealed it until Samus finds a way to remove their essence.
That being said, if neither are okay, I could use a different character, like U-Mos, Emperor Ing, or Mother Brain, but if it's just a matter of familiarity, I take it none of those are well-known to you, either...?
1: I could see them taking out a lot of the sentinels with sweeping and AoE attacks, but I'm not sure if they could take all of them.
2: Similar to 1, but with less AoE and more characters.
3: I don't think they have the damage output to take out that many of the sentinels before being overwhelmed.
4: IDK, she might clear.
5: While Wanda is devastating 1 v 1 and might really let loose if Vision is taken out, her powerset isn't great for massive numbers. Still, with Vision abusing phasing (like he did against Ultron drones) and Wanda using massive disintegration waves, they could take a fair number and maybe clear.
6: Unless Strange can remove all or most to the mirror dimension, I think the sheer numbers are too much.
7: Similar to 3, but Yondu's arrow could potentially ruin the sentinels.
8: Similar to 2.
9: Hela's showings of army-busting means she could arguably solo: with the backup, they probably clear.
10: Their lack of AoE makes it difficult, but not impossible to clear all 100.
While Alphone with the PS did very well against Pride and Kimbley, part of that can be attributed to them not wanting to kill him: Pride even blitzes the flashbang in his hand once--he could have aimed for the blood seal instead if he wanted to. And while Bradley might not know exactly where Alphonse's blood seal is, he should know of its existence, like how Lust and Envy knew about the Slicer brothers'.
Thus, I think Wrath wins eventually by outpacing Alphonse and evading his alchemy, though flashbangs and smokescreens could potentially hinder him.