What is the best reinforcement to fully upgrade?

Don't underestimate Ghost and Phantom =).
Ghost can speed up reinforcements, and both ships could inflict TL upon arrival.
Tie Advanced is nice too, although we often use it as starting ship.

I guess, there is no best...it depends on what you need or what you want to do.
For me, I run Ghost followed by Phantom. Starting is Biggs, Tie Adv, ITF.
Utility reinforcements are Cassian and Poe.

I'm taking a long look at Phantom. The ability to bring in ships on turns 2 and 3 is pretty strong.

Yeah, Phantom's is one of the best for sure, but it needs to be maxed for it to really be great.

The OP has 100 available.

I will say that my buddy's account that I sometimes get to run can place first in fleet arena provided enough battles, and he runs Biggs, Vader, Imperial TIE - Boba, FOTFP, Poe as ships. He only upgraded Boba's reinforcement which is enough to take 1.

On offense it's amazing as the AI doesn't save dispels. On defense, it's mediocre as it is likely being dispelled by a human controlled fleet.

Yeah, I kinda forgot the theme of the thread and was just talking reinforcements in general. Phantom would get my vote for maxed ability. Plo Koon's is amazing too, but I don't know how many people actually use his ship.

"YKMisfit;c-1574369" wrote:
Yeah, I kinda forgot the theme of the thread and was just talking reinforcements in general. Phantom would get my vote for maxed ability. Plo Koon's is amazing too, but I don't know how many people actually use his ship.

I think we’ll see more. Plo is pretty niche, but very good against Thrawn.

"YKMisfit;c-1574369" wrote:
Yeah, I kinda forgot the theme of the thread and was just talking reinforcements in general. Phantom would get my vote for maxed ability. Plo Koon's is amazing too, but I don't know how many people actually use his ship.

Agreed, though calling in another reinforcement is hit or miss (sometimes you need to use your ship's AoE or buff ability instead). Ghost, Cassian's U-Wing, and Plo Koon stick out as the best maxed reinforcement abilities to me.

"K33p3r_ofthe_C00L;c-1574353" wrote:
Don't underestimate Ghost and Phantom =).
Ghost can speed up reinforcements, and both ships could inflict TL upon arrival.
Tie Advanced is nice too, although we often use it as starting ship.

I guess, there is no best...it depends on what you need or what you want to do.
For me, I run Ghost followed by Phantom. Starting is Biggs, Tie Adv, ITF.
Utility reinforcements are Cassian and Poe.

Thanks for the comment. I just looked and my most recent team is Biggs, Tie Advance, Tie Silencer to start and then Slave One, Ghost, Phantom and Poe. Ghost and Phantom seem a bit underwhelming unless you level their reinforcements IMO. If I don't level them I feel like I'm gonna pull them for something like.....Clone Srgt, Cassian, Poe and a 4th like Slave One or 5's Umbaran . I've also flirted with the idea of moving Vaders Tie Advanced to reinforcements and putting Bistans U-wing with that Target lock into my starting 2 as he'll get a damage boost being a rebel when I call that initial double assist from AA ship ability.

I'm a huge fan of Poe for reinforcement. I maxed out his abilities, and his special crits for close to 100K damage on entering the battle. It's enough to one shot most ships (it's also unavoidable). Even his basic hits really hard.