well, i play both character to what i feel is a relatively good level, and i reckon that its 50-50 or 55-45 robs favour, we can kill him much earlier than he can kill us, and with very varied recovery, they have to make a very good/lucky prediction in with gimping us.
his ftilt is annoying, but it has next to no shieldpush, meaning if we shielddash into it, we can jab him for about 16%
if he runs off while we attempt to recover, we can safely fair him, his air speed is too slow to get out of the way, meaning he must airdodge, therefore we can safely get back
bair should be used oos to punish anything when we have out back to them, he cant punish it unlesds he manages to time the invincibility frames on his up-b, u-air and u-smash should be sufficient enough to kill for this matchup
ike should ban castle seige, rob should ban brinstar