Hey SJ_Sailer,
This is an interesting topic that you bring up and I am going to chime in =). We are going to angle away from the "bad player" on your team angle and go towards the inexperienced player.
The easy answer would be BB but let us dive deeper into that choice. BBs are about more than just big guns and armor, BBs are also about projection of power and positioning. The best BB players are the players that get every bit out of their BB; whether that is the full use of the consumables or pushing at the right time. BBs take a lot of practice and time to learn to play correctly. You have to learn when to push, when to retreat and when to be a ship that denies the area to other ships. You have to make the enemy team respect you with your positioning but also not be a detriment to your team.
CA and CL are both swiss army knives and classes that if they are not played correctly will get deleted and be no fun. These two classes of ships tend to reward players that are great at dodging shots and being supportive to their team. I would recommend CAs before CLs but both are good for an intermediate player.
DDs are the class that if played correctly have some of the biggest impact on the game (that is with or without CVs). A DD that understands their role and can control parts of the map without even being there are some of the best DD players. The fear that a DD can instill in a BB player is unimaginable, even if the DD player hasn't been a threat to that player in a long time. With that being said DD is also the one of the most trying ship type to play because of the low hp, CVs focus you and must have team support to deal with radar cruisers.
All the ship types in the game have their positives and negatives but it is up to the player individually to get the most out of their ships.
If I had to rank them in an order just going off of the same skill level in all types:
BB
CA
DD
CL
With all this being said, pick a class you feel comfortable playing, learning and make the most of it!