I have used the

Copper based anti seize grease (NAPA)

Carbon based anti seize grease (NAPA)

Polymer anti seize (marykate?)

DuPont Krytox durable grease (a grease version of McLube with teflon)

Based on personal experience:

Krytox, no problems (longest the bolts were left untouched was 3 years)
Copper based, no stripped threads but bolts are sometimes hard to get out.
Carbon, 1 stripped thread
Polymer 2 stripped threads

FYI (draw your own conclusions)
Kryox is getting very hard to find and expensive (2 oz is $40)
A lifetime supply of NAPA copper based anti seize grease is about $5
The stripped threads were fixed with SS helicoils bedded in krytox.