there's a lot of variables for your attack score in a game, i'd say your list is about nice/good battles, rather than average. Because usually either yours or the other team isn't able to "play a normal game" 

for an at lvl lower tier BB1-2 to get high attack scores i would try to add some asw, this also helps winning. (doesnt add much xp since asw is usually shared xp, but the bigger chance at a win will get you xp )

if you count the amount of bb4-5-6 in a battle and add up the att scores you listed, every battle would get well over 1M att easily (events do bring out more higher tier ships), where a lot end around 600K atm. (and that excludes bombing cv's, subs and asw)

so on average it's a lot lower than that, but you should allways be trying to play above average 

 

This is not close to an overall average.

These would be good numbers for an above average player in a winning or at least highly contested game.

BB6 in GB2 should be doing considerably more than 200k in a win to be honest.


 

Ur talking about on average.  As an average, I'd adjust the bb1 amount a bit downward toward 30k. Getting a good game in a bb1 is certainly doable, but on average you won't reach the 50k.

I would up the bb6 attack, as that really is easy mode most of the time. The rest is ok as average I'd say. The ships have potential to get higher attack, but you will always end up with a few dreadful teams or fail enemy teams in which you won't reach the attack.

Look at the scores after battles you will normally see only 2 or 3 players breaking 100k so your numbers are far too high. My view of average is to do at least the same attack as damage tsken. I'm happy if i break 100k in anything but a bb6.
The other way to look  at it is the team score is 700k ish with 10 bb thats 70k each. Lower tier ships will be bellow this higher tier above.
A while ago a mod took the scores of ships in battle and found an average over a pretty good sample. It is posted here if you can find it. 

Depends on what nation and what ships.  I can get 200k-400k attack in an L2, but in a Super Yamato, I would be lucky to break 200k as I am not as skilled in IJN as UK.  And BB1s with the amount of big ships there are today, especially with at-level crew, chances are they have no chance to get 50k attack.

The vast majority of BB4 and up are lucky to break 50k.

There are very few "skilled" players left today.

The skilled players are usually in a BB4 and below wearing out the skilless tards in their smoke popping BB6's.

Thank you all :)