I'm EV training my Rotom-W at the moment, and it is Bold with 31/8/31/31/31/20 (the Attack and Speed are unconfirmed, but around there). The accepted spread is 248 Hp, 252 Def, 8 Spe. However, since I'm quite a bit below 31 in Speed IVs, there's no point for me to commit 8 EVs that would normally make a Rotom-W hit a relevant speed tier. What I expect would be best, as an alternative, is 242 Hp, 252 Def, 8 SpDef.
My question is whether or not I should put a full 252 into Hp. It makes Rotom-W hit 304, which means he will take 38 damage from Stealth Rock instead of 37, but it also means he will recover 19 Hp with Leftovers every turn instead of 18. I think I'll be getting more Leftover recoveries throughout a battle than Stealth Rock costs, so wouldn't going full 252 Hp be better? I understand going only 248 when Rotom-W uses 8 Spe, but if there's no reason to commit to any Speed, wouldn't the extra 1 Hp from Leftovers every turn be more valuable than taking 1 less damage from Stealth Rock switch-in?
I would appreciate some thoughts on this!