Expertise Rey with Finn and Kanan or HLC Rainbow Dash? Both come in around 59 points.

I'm curious as to which build do you dislike playing against?

Yes

Honestly they both have their dangers. I'd say that Rey is a harder hitting, but Dash is harder to pin down. I honestly can't say who I'd prefer going up against, only that I'd want to go up against both of them with a high PS with repositioning abilities.

I play both of those builds quite often and when I'm not playing them I find Dash to be a little more challenging to play against.

Oh yeah, the why. YT-1300's are less mobile and more squishy, I do well against Rey but have had trouble against Han. Dash has given me trouble in the past before I played him, I don't encounter him a lot now though and when I do I have faired well. If I needed to win a tourney really bad, I would probably play my Dash list over my Rey list.

Rainbow dash - particularly if the pilot knows how to fly him.

Dash.

just block reys sloops wich are very easy to predict and shes a sitting duck.

Rey, though is technically a turret, flies as a jouster making her fairly predictable. As is pointed out by others, Dash is harder to pin down. I also would rather deal with Reys primary rather then Dashs hlc. Hlc is always 4 dice, and with ptl it's probably fully modded. Rey, being predictable, is probably throwing 3-4 dice at me, but out of arc so no extra abilities. Therefore less dmg. So imho, Rey is fun to fly, but Dash is the pain to deal with and is more competitive