I am bias as I do live in Whitefields but I will give you my opinions from what I've heard and seen.
Arthur Vick seems nice. Big kitchens. People say it tends to be quiet but it really depends. Shorter let means you have to vacate your room during the breaks.
Bluebell is v. nice, good location, nice views but from my experience is extremely unsociable. I think if you really want an ensuite, JM or AV is much better.
Claycroft is fairly modern, but a bit out of the way but then again it's close to Tesco
Cryfield, quite cramped but otherwise OK. location is nice. Very cheap but having to move out because shorter let is a pain.
Heronbank, never been, seems a bit out of the way though. Cheaper option for a 39 week let (longer let) ensuite than Bluebell
Jack Martin is a nice, good location very close to everything, big kitchens, people say it is more social than AV.
Redfern, I didn't even know it existed
Rootes - Standard accommodation, proper 'student' feel, good location, known for being rowdy but there are 'quiet' blocks too.
Sherbourne - Very nice rooms and kitchens, out of the way a bit, good atmosphere
Westwood has big rooms, big common area, close to tescos and the post room, but it is out of the way. If you are doing anything on Gibbet Hill (Life Sciences, some Psychology modules) I wouldn't recommend it because its a really long walk.
Whitefields - Similar to rootes very standard accommodation, common room is nice, kitchen is too small for 12 though. Homely feel, great location (Close to Costcutter, The SU, Terrace Bar, the pub, and the social space where you can play pool ect.) and very cheap.
I'd say go for the cheaper ones rather than the expensive ones, you'll love wherever you end up.
In your second year, accommodation can be more expensive specially if you chose to live in Leamington so go for a cheaper one and save that money for your 2nd and 3rd year. With that in mind, I would say
Best:
Rootes, Whitefields, AV/JM
Worst:
Bluebell (too expensive!), Westwood (too far) and Cryfield (Too small)