I am a member of RAYNET the amateur radio emergency network, some members have spent a fortune on torches, and yes they are better than mine, however the bike headlight torch I bought from Lidi does me fine, it has two outputs, so you can save on batteries, and uses 4 x AA cells, it clips onto bike but also easy to carry in ones hand. The beam is narrow enough to span a good distance.
I have used miners head lamps, there were two bulbs, one large and one small and a cable to lead acid battery held by your webbing waist belt, the could clip into the hard hat clip, but most of the time they were dangling over our shoulder, yes a good light, but also heavy battery, instant dismissal if found below ground without one, however those batteries were heavy, it would not be my lamp of choice.
I will admit some look good but when you come to use them not as good as they look, I got a rechargeable lamp from Asda, auto switches on with power failure and movement when in the holder, seemed great, however the light is rather to widely spread. Lidi did two versions the next week and again beam too wide. Great emergency light, specially as it auto switches on so you can find it, about same size as bike light, but no where near as good to see something at a distance.
For a small, bright, light with a good beam, I would look at bike lights, it's not how many lumen, it is how narrow the beam is that counts, if you want it really bright, then car head light is likely the best, but I don't think that is sporting.