Leveling from hosho to Shinano, I would like to say that...

BW CV is viable, but it's extremely tough to keep a high winrate with that. Although I don't have problem with it til CV5 level. With 7-8-9 launch deck it is really easy to take out enemy CVs, and I often rank 1st in attack while sinking loads of stuff. The point is that you must sink enemy CV FIRST.

However as I said, playing  BW CV and being sucessful is not an easy task, it is MUCH MUCH MUCH more tiring than going the FW way. With FW CV it is like a promised win (and very easy in terms of "skill") unless your BBs are really really bad.

Being a BW CV doesn't mean you only use bombers, because that's just suicide. After sinking enemy CVs, you can easily help sinking BBs, providing extra firepower if your BBs cannot hold the line. Again, I must really emphasize, this is a very tough task. with a CV4-4.5, loading up a pile of bombers and taking out enemy CV already takes up at least a couple of minutes. During the whole battle you don't have many attack opportunities, so every little mistake is critical. An average to good CV player going FW in a CV3 can probably neutralize you completely, with ease.

Why up to CV 4.5? If you are going BW in a CV5, you have a high chance to be the most powerful CV on your side, leaving your side with significantly less FT coverage than your opponent, and that is very bad for your team.

All in all, don't go bombing first unless you are a really really good CV player.

i enjoy when they try to bash me :) the bb can have whole enemy line lit up but its always the "fail" cv'c fault! if the battle line lit up and team looses then its bb fault for not hitting thier targets lol and cv role irl is to kill enemy firghter and bombers, then attack ships, not give sight for the bb's that refuse to scout for themselfs.

if someone don't like the way i play then they can leave the room im in, i'll play the  cv role irl, not to some  bb player that expects everything handed to them.

in game if they ask for sight i ask "don't you have a scout"? or if the line was lit up i say "the line was lit! what happened to the bb's hitting thier targets?" i don't let those few arrogent bb players get to me :)

i know they spoiled irl, so they expect same thing in games.

There are 10 BBs and 3 CVs a side in a GB1(before crashes). Only with a spectacular amount of delusion would a loss be attributed to 1 BW. 

 The battle is usually well on its way to being decided even before Ftrs make it to the enemy line. Some reasons why;

1. Crashes.

2. After the split  players do not match up accordingly, BB or CV. A has a BB6 going north while B hase theirs going south, B has two CV5/PCV go south while A has theirs going south.

3. After the battle starts if a BB or CV crashes no adjustments are made and there is no BB5/6 south/north or no CV south/north. (adjustments should be continuous)

4. No 120 scouts

5. At the start of battle those BBs that do scout send them into AA at max altitude whilst rushing only to find themselves in the dark and out of overheat and using their last few seconds to type/pass the buck "vision noob cvs!".

6. RM BB4s.

One thing I do find annoying are the CVs who show FA, FB, FAB and turn out to just be BW*. This is misleading to the entire team, just like BBs who show R and die without ever sending even one scout out.

* I think, and have suggested, that there should be a color bar or counter that displays to the CVs team what the CVs have loaded. That way a BW doesnt join up with a fake FW.