I liked the reloading / crafting in NV. As stated by others, the interface was sub-par, and there were some munitions I would have liked to see; subsonic rounds, tracers, etc. I played on 360 and I would have bartered my right thumb for a controller with a page down button.
Cooking...ugh. Great idea, but why the fuck do I need to FIND a campfire? Why now just make me collect wood and then...um...burn it. Never played NV on hardcore, but I can imagine that cooking would have been much more useful in that case, although having to travel to a fire would suck if food was vital.
Imagine the game play possibilities if you could build a fire anywhere...guess who's coming to dinner?