I've been using dry lately, but I used liquid for maybe 2 years. I dumped them because I lost track of how many times I used them, but one had also mutated, though in a good way in that I was getting higher attenuation. But the biggest reason was that we were moving and I wasn't going to be able to brew within a reasonable time frame, and it's just easier to not move stuff if you don't have to.
I used WLP-001, which is supposedly the same thing as US-05 dry yeast. These have been my go to strains, and I get the attenuation that the mutated 001 got. But US-05 compacts the bottled sediment tighter. I'm thinking of salvaging some and keeping it going instead.
My wheat yeast was WLP-320, but I had it only because what I wanted (Wyeast 1010) wasn't available. It was good, but had low attenuation. I tried WB-06 dry but the clove conflicted with my honey wheat a bit.
I also used Wyeast 1272 (IIRC). But it has lower attenuation than 001.
I've used S-04 British dry yeast. I like it, but I have nothing British to compare it to. I'm wanting to find a great yeast I can keep going for brewing an ESB, IPA, barleywine, and northern brown.
I'm also wanting to make a Scottish beer and an Irish red. Not sure if I can keep a strain going for these unless a British yeast will suffice (one for the others).