I'm a fan of both A-wings and running what I like to the point of stubbornness. Recently I played a pair of matches that both game down to a single A-wing vs. a single Phantom. Both end games lasted a long time but inevitably the Phantom won out. It's 4 attack and cloak just neutered the 2 attack I was throwing.
In the first game successful procket attacks saw Jake, Tycho (no shields), and Gemmer (one shield) eliminate two squints and a TIE with only Whisper remaining. Whisper blew Tycho sky high with one shot and Gemmer fell the next turn. All that was left was:
Jake Farrel
-Test Pilot
-Push the Limit
-Outmaneuver
vs.
Whisper
-Veteran Instincts
-Advanced Cloaking Device
And it looked like this for 4 rounds:

And, for the first time, my A-wng felt like the less nimble ship on the board:

Constant turning in on each other. Jake used his barrel roll to great effect, cutting inside of turns, luring Whisper in close to then slip out of arc, and actually got off more --albeit ineffective-- shots. Eventually Whisper pinned him in though.
The second battle was between Whisper and Tycho. In a much more even battle 3 generic A-wings and 2 squints slaughted one another, leaving only Whisper (down one shield) and Tycho in full health.
Tycho Celchu
-Test Pilot
-Push the Limit
-Daredevil
vs.
Whisper
-Veteran Instincts
-Advanced Cloaking Device
-Rebel Captive
Rebel Captive was Whisper's only addition but Tycho channeled the cold void Alderaan's destruction made in his heart and ignored the stress it gave out, rendering that particular addition moot. Unfortunately, much the same end game played out with Tycho turning head to head as much as possible to try and force the overshoot. Inevitably Whisper managed to create enough distance though that 5 attack die later Tycho went the way of Alderaan.
*Fully recognizing that this is not an ideal match up* though I thought I'd ask: Any advice on how to handle a lone A-wing vs. a Phantom? I'm not playing for in a tournament, I'm playing in my living room. I recognize there are other lists that go well against Phantoms but I'm not interested, I'm specifically asking about any advice for going toe-to-toe with an A-wing. All in good fun so if there's nothing to be said that's okay.
Because the A-wing still looks sexier anyway.