Hey CatRatBard, welcome to the message boards! With me personally, Musketeer is good! It is the ONLY class I use, because I put a lot of crowns into him. You can get some trap moves, some really powerful companions, like Ridolfo Capoferro, Tyson, and Louis Le Bisque. If you get to the Tower of Moo Manchu, people actually LOVE having at least 1 Musketeer on a team because they are ranged and do lots of damage, along with providing agility buffs, making their Swashbuckler friends UBER OP. Give it a shot!
Any class has its advantages and disadvantages, we have space to create 6 pirates - why not try them all ( at least to level 10 ) to find out which you like, also, this gives you the opportunity to chose a different 'death' for your parents; giving you a chance to see the different Presidio companions in the game! Personally, I LOVE being a Swashbuckler!
In my opinion privateer for starters they get the most companions so if your low on nautical experience have some companions on the job second they get good buffs so your companions can be beast third they get light armor and healing for free fourth the most health and last thanks to all those facts they can solo most dungeons