I have branched 3 characters from the sp line, each flys a different ship, that being the Titan, Sabre, and Eagle depending on how I feel that day. I think each ship is great in its own environment. All 3 can mount the same weaponry, in the case of the Sabre its turret can fire forward, but if you can switch to turret view and still control the ship/aim/ and dodge enemy fire in the middle of a big 4+ ship fight then you got me whuped. Even still that adds one class 9 weapon to a mix of 4 class 10's and 2 class 9's.
The titan while having a huge hull, is not the best dogfighter. I like the titan in radiation zones where having a huge hull with a 71 nano pool will keep you there for a long time.
Next is the Eagle, again no forward firing turret, smallest hull and smallest nano/shield battery storage of the lot. But best agility. While again I enjoy flying all 3, my overall view is that in a dogfight I would take the more agile craft as the shields will be the same. Even in a titan, if all my shields are gone I find that the extra armor will give me about a 2-3 shot longer life span than the Eagle. Weapons are rated in damage per second, if the eagle takes one less second to turn in a big dogfight than a sabre/ and I do lots of turning/sliding/burning/stopping. Then that is one less second of damage I am dishing out which directly turns into more damage I am taking.
Just my 2 credist worth, hehe, but seriously, pick the one you like and like the one you picked. If you love using turrets, then definiately go sabre. If your turret (like mine) is mostly for looking around the beauty of space while cruising to a spot, then go titan or eagle. But most of all, just have good time