I know that two people have posted that HICs aren't very useful in low sec, but I have to say that they are far more useful in a gang than a HAC. Rarely do I have a gang with out at least one HIC, and usually we have 2 or 3. They are better than just about any other ship at making sure your targets stay where you can kill them. ON the other hand, I usually ask HAC pilots to switch ships since their crap tank makes them next to useless in low sec. You can gank a frigate or a T1 cruiser that is crappily fit with one, but anything bigger than that and you will die from gate guns long before you finish the job. (plus they become a huge burden for our logistics, since the crap buffer requires us to prelock you in case you take fire - if we want to keep you alive.)
Now for solo hunting, a HAC is more useful, as it can actually kill something, and has enough speed to dictate range, but on a gate, where 95% of your fights will be in gang warfare, they are just an expensive glass cannon. The HIC is a great support ship in low-sec gang warfare. But they make horribad bait ships, since no-one will believe that a HIC would pilot alone though low-sec. A lone HIC just screams "BAIT".
Now, I agree that a BC is far more useful as an everyday ship, but I consider a HAC a bigger waste than a HIC for him if he plans on doing low-sec gang warfare. Yes it cost the same as a fully fitted and rigged BS, but so does any T2 Cruiser (HAC/Recon/Logi). It really comes down to what you want to do. If you want to solo quite a bit, then the HAC skills are where you want to go. If you want to be more useful in a fleet, then the HIC is a good choice. Most FC's would appreciate you even more if you could fly logistics, or at least experienced FC's.
Of course this is from someone who FCs a lot of small gangs through low-sec, and rarely does solo work. So those that solo more often will likely see the HAC is invaluable.