One of the Defender archetypes I'm most interested in right now is 2 TIE Defenders + a blocker. It leaves a lot of points for the two Defenders to be generously equipped, and that blocker does some solid work on its own. There's a lot of room to consider things here, though, and I'm interested in the community's thoughts.
If one of Defenders is Vessery then Epsilon Squadron Pilot is a great choice at PS1. For 3 points more than the bog-standard Academy Tie, you get a shield and a superior dial. More importantly, you get a TL action (unlike the Tie/Ln) which is great for feeding Vessery. If you are willing to blow an extra 3 points on him (still fairly cheap) you can add Comms Relay which gives him an extra, rechargeable pseudo-shield.