I use a maglite at mo, ive foung it doesn't seem to lay down enough light.I think you'd be fine with any, I have a rechargeable nitecore one (mainly for work) but any will do, for light painting I use glow sticks and then save the wrappers from quality streets to make my torch different colours too
I have the Fenix FD40 which i chose after reading loads of reviews and gathering info.
Thanks for help i am hovering over The Atactical A1S at the moment.Matt (can never remember his moniker!) is the man to ask - have a look in the Creative area and/or the tutorials section for a 5 or 6 letter upper case user name.
ETA- @MWHCVT - looked it up!