I went to a CAMRA Meet the Brewer event at a pub in South Manchester last night.
The brewery in question had three of its beers on draught in the pub and also kindly brought us some bottles to try. I was pretty impressed with all of them, including a Pils brewed with Czech hops that unusually was available on handpump as well.
What struck me most was the difference between the beers in cask and in bottle (the bottles are brewery rather than bottle-conditioned). The citrusy notes in the IPA for example were far zingier in the cask compared to the bottle.
There aren't that many beers that I drink in both cask and bottle. Most of the bottle-conditioned beers I regularly drink are from London brewers like Fuller's and Young's and either aren't available in cask or only in their pubs in the capital. I also find that some brewery conditioned bottles – Robinson's Unicorn, Timothy Taylor's Landlord – are much closer to the cask versions than others.