Rhydon question

Mud slap hits harder than rock smash
Stone edge hits harder than earthquake
- I would personally wait for mud slap stone edge. I powered up 2 different Rhydons that didn't have MS&SE because I was impatient and I regret it. But if you absolutely have to id power up the mud slap one because of how hard it hits.

EQ, IMO, is the easiest charge move to dodge. You can dodge it so late it almost seems bugged. This makes it completely worthless as a defensive move in my book. SE comes very quick and does a load of damage. Hell, even mega horn wrecks my poor Eggy's day a lot quicker than EQ does.

For that reason I would vote for the SE one...but I would advise you to wait for a better moveset. Or, ms/eq makes a good attacker into Snorlax, so you aren't "wasting" that candy and stardust because he would be multi purpose pokemon...

I would go for RS/SE because not only would he be a fun attacker into Snorlax. But aswell it would be his best defensive set, due to being SE vs some of the top Generalist such as Snorlax, Blissey , and Tyranitar. Plus Vaporeon doesn't resist Rock Smash making it just as good as MS. Plus it has all these extra bonuses.

Neither. Both are good attackers though.

I have a 3081 CP mud slap - stone edge Rhydon. He's tremendously effective - great against Snorlax. He is still not one of my better defenders though, because he's vulnerable to water and everyone (at least in my area) has a whole stable of water types. The only way he stays in a gym for long is if he's close to the top.