I've been reading quite a few different comparisons on the forums here, but my requirements are (as usual) slightly different.
I spend quite a bit of time on planes, or in noisy customer offices so I'm looking for some IEMs that offer good noise isolation, but are a bit less bland/neutral than my HF5s
The triple flanges are great on the plane, but quite tiring after a while, and I'm hoping to get something with a bit more punch to the bass line and better mids - but really it's all about the comfort
I'm planning on buying when I get to the UK next week, and looking at spending a max of about 200 quid
One thing I do like about the HF5s is that they're relatively comfortable to wear while sleeping on the plane or in noisy hotel rooms - so the profile is pretty good - they just tend to be hopeless when out jogging. As usual, I'm looking for the one set that will do it all, and won't take up too much space in my laptop bag ;)