Also I posted that having a good battle computer is better than having a good scanner. I based this assumption on statements made in the "Option for less information" thread on the main ToS board. I believe Rosary and Thorgrim pointed out several benefits of a good battlecomputer over a good scanner there. I am not sure how to post a link to a thread or I would do it here. So If you are debating on getting the level 6 scanner or the level 6 battle computer, go with the computer. If its one or the other. (Please correct me if I am wrong on this)
Missed one there
The choice between a BC 6 and a scanner 6, it's not that linear. Depends, before anything else, what you're choosing between. If it's between a BC 1 / scanner 6 and BC 6 / scanner 1, definitely. But if it's for example BC 5 / scanner 6 and BC 6 / scanner 5, not so fast! A BC 6 in relation to a BC 5 adds 2% to your to hit, and makes locking a little faster. A scanner 6 in relation to a 5 now gives you more range (+1 hex opt and max), +1m VH, +5% to active scans and faster scan times. So, it's another game altogether
You have to consider your weapons' reload times, and your jock's skills. Support titans have longer reload times, so a slower scanner won't hurt them much. But energy titans reload fast, so a state-of-the-art scanner is probably better. If your jock has a very good scanner skill, he may not need a very fast scanner, and could use a better computer. Trade-offs.
Same deal for DCS, but not so important there.
When choosing your titan's weapons, reload times of the weapons should be an important factor. Mainly because of scan times.