Balrog has some pretty annoying stuff but most of what you have trouble with can be dealt with. EX headbutt is slow (12 frames), so every character should be able to meaty jab/short and recover in time to block. His fastest EX armor move is 7 frames and relies on back charge. If you get a knockdown/anti air, just steal his charge so you don't have to deal with it or go for a 7 frame safe jump. Or throw him out of it.
Wakeup hurtbox and his lack of feet (like Fei Long, it's impossible to hit them low!), I can't really help with. He's got some super annoying stuff (good backdash, better frame advantage on his high/lows), but is MOSTLY a straightforward character nowadays. Imagine if he still had his vanilla jab!
Mango Sent, I'm surprised you like the Rog matchup with Rufus. Aside from landing ultra full screen off of tornado on him, I don't see what else you have going for you in that matchup, lol.
My least favorite matchup with Dudley is definitely Fuerte. I can't really stop him from running around like an idiot due to my lack of reach, and he has good tools to deal with high low pressure.