1.we compare just lvl 3 Alice and lvl 3 MC (not his advanced version)?I don't think level 3 Alice would have any chance of a win against the mc neither do I think the other friends would fare any better than her against the mc.Mc had a decent time to grow in his level 3 now.Before level 3 power is capped.Whereas mc has been growing his power stats at a pretty nice rate and at level 3 even the base body becomes stronger to accommodate the no cap.So imo no way the other friends ever get stronger than the mc they might get real close tho.Now Unless Alice gains crazy amount of power each day at level 3 maybe then something would happen but I don't see it.
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2.Alice is handle ultimate destructive power - i mean enough power to on her current lvl present a solid threat to lvl 3 Matt (as he said - it could actually kill him and his set of power make him very hard to deal damage).
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3.Lvl 3 is rapid grow in terms of power and all basic abilities. To the point where this is not even fair. If Alice already has capability to kill lvl 3 superhuman, then on lvl 3 she possibly would handle such power which would be able to vaporise MC in one strike (basicly as Male twin show - this is worst match for MC)