Depends on your team, honestly. If you don't run dark and aren't active reliant, Ralph is the easiest part of the dungeon - free 5 turns to stall, where the enemy doesn't touch you at all. Can't ask for a better deal than that. (jk IIRC some blue dragons waits 7 turns before hitting you, the blue land and the blue ancient, I think)
You can use mini DQXQ if you started early enough, otherwise you have tornado holy dragon (evolved lil white)
If you're leading Kirin, throw out the gravity here to earn a bit of leeway.
That doesn't negate the statement that he's significantly harder than Ra - one likely requires an active and one doesn't.
Also, the Michaels that usually show up in C8 are even more annoying - 4 more hp, more attack, and the kicker is the no RCV dungeon, so you end up dying before status shield wears off =_= In contrast sandys michael is cake.