I have to make this a quick answer.
Both brands are so good that the choice becomes personal.
Get Digilight if you value light weight, slim profile, and the ability to use Surefire-brand and Surefire-compatible parts and accessories, including tailcaps, extenders, heads, lanyards (not available for Wolf Eyes), diffusers, and traffic wands.
Get Wolf Eyes if you are willing to trade the Digilight's flexibility and lighter weight to get a slightly whiter and more powerful beam, a 3.7V rechargeable option, cooler operation, longer runtime per charge (via fatter cells), and a 300 lumen, three-cell rechargeable option.
