I have about 5 or 6 maglites. One is so small it takes a single AA battery.
The best one is my rechargable nicad with a halogen bulb. that thing will blind you. it has a holder-charger that is mounted on the wall in the garage, same as the police and fire departments use.
5-Cell Rechargeable
It cost about $115 but i've had it for 10 years. had to replace the bulb a couple of times and the battery pack once.
But, it's not something you'd travel with. I have a couple of the ones that use 2 AA batteries, they can fit in a pocket and are pretty handy.