I tend to think the LRMs and Hurricanes are right where they should be. They suck against frigs, but they tear unshielded larger ships to pieces. They don't track well, true, but they don't need to. Most of the cap ships can't dodge, and the cruisers aren't much better generally speaking.
I feel like the MRMs could use a speed increase, or just generally better tracking for fast targets (better/longer predictive lead). The harpoon especially is too slow. It's built as a finisher, which is great, but more often than not if you force your opponent to vent or overload, by the time you switch to, and fire your Harpoons... the missiles are too slow to close the gap before the shields come back on. Now, I realize this is an issue of timing, but I would like to see the Harpoons be a tad quicker in a straight line (they track just fine IMO)
I also imagine (for no real reason) that missile range/speed/guidance should be affected by the player character skills and officer skills. So maybe that will help close the gap between what we have now and what we can expect later.