lol, well, here's a list of what I didn't like about vB3 (things I remember.. it's been a while since I last saw it... :P)
* First of all (And probably the most annoying one): The goddamn navbar and welcome pannel... I HATTED THAT THING. When I first saw it I said "God.. that looks ugly.. it'll be need some modification).. but modyfing the damn thing was HARD!... I couldn't modify it though (can't remember why)... awful thing...
* The "pop-up windows" thing. Like when you click on a username or on the search button, a little window appears.. that thing slowed my computer (it's crappy, I know.. but still it's annoying and it doesn't happen on vB2.x) and again, when I tried to modify it, I was unable (still can't remember why...)
* On the acp, when I was changing templates, it had WAY more colour settings than on vB2.x .. that means,a WHOLE LOTTA WORK...
*ACP taked AGES to load on my 56kbps modem (that gladly is gone.. I'm on 128kbps.. not such a big jump.. but hey, it's better than 56kbps.. :P) since it had lots, lots and LOTS of comments on every single template and colour to modify. This is great for the newbies, but as I already knew what does what, it was pretty annoying....
*As I said above, it runed slower than vB2.x
*When it was released, I had an already moded vB2.x forum, and vB3 didn't have many hacks by the time.. so I decided to stick with vB2.x.
I guess that's all I can recall.. but it was mostly because I felt very uncomfortable at the ACP an when organizing/modding/designing vB3 ....
*sits and waits not to be banned for ever.. XD*
1. navbars not hard to work with if you understand some html
2. you can turn them off with one click on the admincpo
3. Actually if yhou upgrade all the standard settings come over for the most part, more colors just means better options to set things, if yolu need some help your talking to the master
4. ACP has never taken that long for me to loaad even when i was on the road and using 28.8 dailup
5. Dunno how, if you set a few options loading times should be way way way faster than vB2 is even capale of.