You should probably specify that you don't want the "worst" one, that means you're just picking a class because no one wants it. Picking a class solely because it's unpopular is somewhat hypocritical, since you're being incredibly vain in your choice. Pick a class because you will enjoy it.
Also, all of the weapons work with the right classes now, mastery/booster goes for both weapons. The damage was also changed, so bw and axes are the same as swords (the only difference will be the specific weapon stats). There aren't many standout "bad" classes post BB. For the most part, each class has its own strong point (be it training, single target dps, solo bossing, support, multi-target dps, mobility, etc).
I would say a great "solo" class would be Buccaneer. It's a good training class, and works well unfunded. Evan might also fit your expectations, but it does require Nx.