I think the choice set should be listed second now that amoonguss / thundurus-t are in OU. If you predict wrong with Volt switch thundurus can just set up and sweep you.
Max speed is also relatively useless on scarf rotom. Use 42 hp / 252 SpA / 212 Spe Timid to outspeed Jolly Dnite at +1. The bulk isn't much but it's better than nothing.
The bulky attacker set looks good but i would remove this sentence: "Fits well on most temas, although not as well as the Choice set". We shouldn't be talking down other sets on the analysis.
*edit* Mention signal beam somewhere in here on the choice set to nail celebi. Oh, and consider adding an Ebelt and a Chesto Resto set. At the very least they deserve a mention in OO (probably just OO).
<20:04> uragg there is no better feeling
<20:04> uragg than moisturizing your legs
<20:04> uragg when they are ashy