Assuming you don't actually have any other useful enhancive than your AG badge, what's the best way for a monk to use it?

I tend to go first for LOG/AGI/DEX if that takes me past a threshold but after that I can't think of anything that looks particularly attractive.

>I tend to go first for LOG/AGI/DEX if that takes me past a threshold but after that I can't think of anything that looks particularly attractive.

Depends also if you're going to include perfect self into your cman training. I intend to do so which means I would not get AGI or STR on my badge, as I'd already have 5 or 15 bonus alternating between the Pre-reqs of Surge and Burst. Logic would be useful if you get to a threshold. Con is good unless you've already got perfect self and Toughness.

What benefit would you get from the dex? Only thing I see would be if you're also trained in twc.

It looks like that lore would be the best use for a skill enhancive. Plateskin is a very long way off though. AGI would indeed be the first priority for AGIDEX improvements.