In the past I would've said Rock Lee too but because you're using non-canon Evil Ryu who beat Shin Akuma, I have to say Evil Ryu would probably win.
In terms of strength, it's a no contest. If Evil Ryu is more powerful than Shin Akuma who effectively sunk an island then Rock Lee has no feat that can even compare.
In terms of speed I would once again have to give it to Evil Ryu. If we are to assume he is as fast as Akuma who destroyed an asteroid in space, meaning he must've travelled at least 25000mph -ish which is the Earth's escape velocity, then I don't think Rock Lee has any feats that compare. Rock Lee is probably super sonic (700mph-ish) at best, when using the inner gates.
Isn't using Evil Ryu feats as Ryu feats the same as using Hollow Ichigo feats for Ichigo? I thought you guys separate characters like that?
That and the fact they aren't even using his feats but Akuma as a measuring stick. This thread is all sorts of silly.
Some hits and some misses make it to your local streaming database this week.