My main problems with Fallout 3, which I'm sure have been listed ad nauseum here, are the following:
1) More than anything else would have to be the bugs; particularly game/quest breaking bugs. I find this true of just about any modern video game but unfortunately games don't have smooth gameplay straight from the get go and almost always need an immediate patch. Damn, at least let me play through the game without crashes and freaking broked quests!!!!! That's too much to ask apparently.
2) I was extremely disappointed at the devs attitude (Even stated in an interview by them) that their focus was predominantly gameplay over storyline. This was my big non bug related complaint; for me the heart of the RPG is the story and the characters, watering them down in this genre in order to focus on VATS or other systems really upsets me as I expect story and characters to be of high quality when in an RPG. Course this also is shared with many an RPG as well anyway, I can count how many RPGs had truly exceptional chatacters and stories and have fingers left over but it was a big gripe against Fallout 3.
3) The length of story related quests, both main and side, were way too few. I had hoped to have much more purposeful things to do outside of simple sandbox exploration, which while I do enjoy immensely, should be accompanied by equivalent storied quests.
4) The size of the cities/towns/settlements. Megaton, Rivet City and Paradise Falls are just fine, but just about everywhere else was too small and had too few residents to qualify for towns. One of my biggest disappointments was Canterburry Commons which, from descriptions, I expected a bustling market city like the Hub from the original or at the very least a city-sized Market District from Oblivion's Imperial City. Arefu, is also an honorable mention in being too small; some of these cities only had 4-5 families and even then in some cities most were dead when you reach them like Brian Wilks' city meaning even less people there. I wish some of these settlemesnt were fused together to make bigger cities/towns, even if that meant less number of communities across the worldspace.
5) The choice/consequence factor not being properlly displayed. The world didn't seem much affected by my actions (Seldom does in most RPGs that claim they do anyway). But it svcks to not have visible changes in the towns you visit or with the people you help/harm as a consequence of the choices I made.
7) Related to above, the endings not showing a city-wide compilation of how my journey affected them like it did in the original Fallouts. I didn't even need, although would have also preferred, to have 4-5 different endings per city; just give me a 1 good/1 bad ending per each city/settlement and I'd be a lot happier.
8) Not having developed companions. Related to character depth I know, but this specifically irks me. Maybe Bioware and Obsidian spoiled things for me because they have companions with their own sidequests, banters, storylines and who are also affected and often change during the course of the game. I so wish Fallout 3's companions had this. (Originals didn't have this either but I think it would have made the game better).
9) Npcs with deeper connections with my characters. Something I miss in most RPGs, where are the npcs that have true connections to my PC. Where are family members, true close friends, mentors, people who make my PC feel like he isn't yet another loner coming from nowhere to again save the world? Sure F3 had Dad and the promising Amata, many RPGs have a love interest or several, but usually this is kept very limited or only the surface of these characters' relationships to the PC are ever explored throughout the game.
10) Some of the specific little details to make immersion better. F3 had some good clutter and level design, compared to others I've seen anyway, but some things that are cruicial for the world's reality was glaringly missing and hurts beliveability. My primary example of this is the missing Brahmin pens in the towns and sites of agriculture in order to display how residents have food outside of the traders. Sure I guess the town has hunters that go and get food and the other stuff is acquired by barter but this was missing from the cities among other similar things.
Anyway that's what I can think off at this moment as far as my main disappointments with F3. I should mention though that most RPGs also suffer from 1 or more of these as well as there is no one perfect RPG out there that provides everything I'm looking for. :shrug: