I have to agree with the people who responded saying that a headlamp is the best way to go. For your uses, you can definitely find a headlamp bright enough and it's so much more convenient to have your hands free. I would personally recommend a zebra light. This model in particular is great: H600w Mk III XHP35 Neutral White 18650 Headlamp.
These lights are tough. I have purchased 4 of them(I've never had one break, but I can't help but lose them for some reason :s ) and I take them EVERYWHERE. They've been with me covered in mud in caves, clouded by dust in underground mines, soaking wet and submerged in canyons and rain, etc.
Not only do they last, but they're incredibly bright (1100 lumens!), have 6 modes, and have a pretty good battery life if you don't cheap out on the batteries you buy (which are rechargeable. One of my favorite features of them is they're small and have NO BATTERY PACK. So many of the brighter headlamps come with bulky terrible battery packs with wires that can easily get snagged on something and pulled out.
I consider these lights to be the perfect balance of quality and cost. Unless you want to go custom or the super expensive ones, you'd be hardpressed to find a better value in a headlamp.
If you're married to the idea of a hand held, I'd personally recommend going for a modular one. Solarforce is a great brand that has a variety of different combinations you can create. You basically pick a body and a drop in and you can mix and match with different pieces to customize your light if you ever find you need a new use for it (i.e - you want it brighter, dimmer, flood, spot, etc.) This retailer carries some of their lights: Solarforce Lights.