My favourite of the ones I've read so far is And Here The Wheel. In fact I've read it three times now. And it's the only one I've read that manages to avoid the stereotypical "sexy lady sells sci-fi books to blokes" approach. "Space kilts" doesn't do it justice, I'm not sure we were reading the same book!
Reclamation wasn't as good as I expected it to be after all the hype. I've not got around to reading Premonition yet.
Docking is difficult is a nice break because it is funny, reflecting a part of the ED universe that does still have a sense of humour. Note this also avoids the "sexy lady" stereotype.
Wanted had the most interesting ideas for ship modules and space phenomena of the books I've read so far.
Nemorensis started terribly but improved.
Legacy was alright, but didn't leave enough mystery and intrigue as I was expecting, considering it is the "official novella" of ED and should therefore stand shoulder to shoulder with The Dark Wheel, Imprint, Stories of Life on the Frontier and Further Stories of Life on the Frontier.
Mostly Harmless was fine, but I think there are many possible plot lines that could have been explored but weren't, therefore I was left a bit disappointed.
All the rest are still on my reading list unfortunately.