Go on then, I'll have my say...
First time round:
1) MoI, for all the reasons stated above. Not many books bring me to tears, but this one did.
2) DhG... It was about half way through this book that I realised the MBotF was amazing and I had to read as much of it as I could RIGHT NOW. 'Nuff Said, I think.
3) HoC... I liked the Karsa storyline, but thought the last half of the bood was a bit lacking in its own identity. Felt like a tack-on to DhG. Stil great.
4) MT... It's well written and gives us some good snippets of infodump, but I found most of the Letherii pointless and uninteresting. T&B excluded from that, of course.
5) GotM. I thought this was pretty good, but not great. Interesting ideas but too many cliches imo (floating mountains, deck of dragons, great big monster-hounds). I think only after Erikson elaborated on these ideas in later novels did they become interesting.
On my second read, HoC inexplicably jumped up into first place
I'm not sure how it did that, but I think the emotional hits of DhG and MoI were not so strong second time round. That, combined with the fact that I was better able to appreciate the threads in HoC with a bit of hindsight ("Aaaah, so
that's where that came from" etc).
****POSSIBLE SPOILERS for MoI****
MoI still got me crying, but instead of the ending, it was the bit where the T'lan Imass share their grief/thoughts with Itkovian and one of them says something like "I dreamed I stood at the First Sword's side and defied the ritual". That really touched me.