In your particular circumstance, I believe Al's preference would ultimately be mine, as well.
The Beltronics chassis are constructed of a more substantial material as compared to other value-priced models and thus will be more conducive to exposure or partial exposure to the outside elements being mounted on your bike. Additionally the ergonomic controls/buttons will likely be easier to work with by your hands when gloved.
Also, if and when you decided to go wireless to your helmet, then you'll have more options with the Beltronics models.
Veil Guy