It all depends on what you're looking for. Based on specs alone, the Panasonic Lumix is the way to go. You'd want to wait until the newly announced Lumix TS2 is released though.
The Olympus tough series is good, and covers a range of specs and prices.
You can't beat Canon's Powershot D10 for price and quality though. It's got great specs, at a low price point.