I like to see at least 500k prestige from a player. I would prefer to see over a million for a veteran. Everything beyond that is just icing on the cake. Swollen prestige impresses me that you have knowledge of how game mechanics work to exploit prestige math. But it does not strike fear in me that you might be a powerhouse player. In fact, you need to nerf your potential strength to properly prestige grind. Cutting down to one city with a low TH does not make me quake with fright.