Hi, I wasted several batches of ESB which tasted great post primary only to take on this metallic tasting gusher thing, as described by others. So I quit beating my head on 1968 and spent some time trialling other strains. I maintain a yeast library, so being a yeast nerd is kind of like a sub hobby for me.
1469 can be muddy and far too fruity, even when fermented cool (I have temp control). Not a keeper for me.
1028 and 1275 attenuate well and floc OK. 1275 is less mineral tasting and great for English IPA - a strong preference over 1028 for me
Thames Valley II, 1882?, is very good for a malty profile but with reasonable attenuation. It is a Private collections n one though so seasonal. Recommended if you find it.
1026 cask ale was OK. I only did one bitter with it and it lived up to its rap of being a good attenuator and on the tart and fruity side. Not my thing but better than 1469.
1768, the seasonal ESB worked great in an old ale and I am really enjoying the heavily EKG focussed ESB on tap right now. It is like a restrained 1968 but without the trouble or the need to rouse. Mashing low (64.5C) is an easy way to avoid high terminal gravities with English strains.
1167 Ringwood has a great flavour profile but throws a ton of diaceyl that requires a heat ramp and prolonged ferment on the cake to clean up after itself. I like it but it probably isn't a good choice for those without temp control.
1318 has made me two fabulous bitters, medium attenuation, great flocculation with some esters. I did an oatmeal stout too, which was a tipper but I think that was a crap recipe poorly executed rather than the yeast.
After reading the perfect pint blog
http://perfectpint.blogspot.co.nz. , I went on a mission to get WLP Bedford Ale and can happily report me and my friend who made batches of best with it on the same day both concluded it has an awesome flavour profile and habits, medium to high (for English) attenuation. Sadly it's also a seasonal offering.
After making a stout with the Guiness strain, I was massively underwhelmed by it although others reckon it makes a fine English pale ale. Nottingham is too dry and flavourless for bitters and milds, whereas good old S04 can make a solid beer if you dig the slightly yeasty edge it can leave on things (I do).
In summary, and sorry for long post, if 1968 is your thing flavour wise but it simply won't work for you then I suggest you try 1768, 1882, or 1318 in that order of preference, and keep the mash temp down.