I'm not a lawyer but I think you would be entitled to a split of all assets and possibly spousal maintenance as well as claim to pension. Whether there is enough capital assets that would allow you to take higher share of these and less of pension / maintenance no one can tell from your post but based on your length of marriage, age and your own pension size it is likely you would receive a large share of assets. Again, it may or may not be possible to achieve a clean break meaning you take cash now rather than ongoing maintenance.
You will need to seek legal advice and also get proper financial advice with regard to the values of both the pensions. Only that way will you be able to see what options you have.