Hectorinho.

Both will be exposed against City

Bellerin has played well when he's come in and deserves his chance. Chambers should be used in the centre.

The key thing is who plays in front of them. Ox will track back and help defend, Ozil not so much

Bellerin easily, our best RB for me

Play hector he's impressed in every game he's played even in his Stoke away game

In an ideal world neither but at the moment if pushed I would go with Hector. Looks more confident and is very fast. Both have a lot of work to do though.

Bellerin--wonder why it took Wenger so long to debut him and Coquelin. They've both performed well, relative to their experience and age.

bellerin by far. Chambers really has struggled in that position, in fact Chambers form has regressed as the games have gone on whilst Bellerin has been getting better.

Just remembered ive got a new app, called Kick, that allows player comparisons, They are very similar on pass accuracy, tackles, duel success and goals conceded per game with Chambers committing more fouls but having a far more clean sheets, all are on a per game basis.

Bellerin for sure. Chambers will get roasted if he plays as a full back. The only issue I have with Bellerin is that sometimes he ventures too far forward which can lead to gaps at the back. He has got the pace to recover lost ground, but positionally and tactically, I still feel he has a lot to learn.

If someone covers for him when he maraudes forward then fair enough but sometimes that isn't the case and it will certainly be an area City will aim to exploit.

Bellerin looks good much better than Chambers at RB. Fullbacks have to have pace Imo and chambers isn't quick enough to be there.

Bellerin for me, although part of me hopes Wenger opts for Chambers and as a result decides we need another CB

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Got to be Bellerin, Chambers doesn't look comfortable at right back.

Chambers gives all mediocre players out there the hope that one day they can get a big payday.

Bellerin is doing very well. Its a shame that Wenger needs his right back to protect Mertesacker. I hope Wenger doesn't select Chambers for that reason because Chambers just doesn't have the pace to cope with clever wing play.

Bellerin at right back by a mile - he is inexperienced but is a threat going forward and will get better defensively.

Chambers is not mobile enough for right back - his future should be at Centre back.

Bellerin easily..At RB Chambers has no chance he would get ripped apart by pub league winger.
While Bellerin is closest thing to solid RB we've got..also his pace and energy troubles ,defenders upfront.

Bellerin's a better RB, IMO, but Chambers provides more aerial presence with which to defend set-pieces - an area we are really lacking.
Unless we're playing a team that provides a real threat from high-balls, I'd probably opt for Bellerin.

That being said, I don't think the stats posted are necessarily up-to-date. There does tend to be a problem with wiki and other sites in that they get an initial set of stats for a player when they first break through (16/17 years old), and fail to update them even when they have a growth spurt.

As an extreme example, there are some stats sites which list Mateo Kovacic as ~5"11-6 foot tall (post growth-spurt height), and others that still list him as being 5 foot 5.

Chambers is pretty tall and built, and I wouldn't be surprised if he's close to 80kg now. Either way, I would say he's stronger/less likely to get pushed off the ball than Bellerin.

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Dastudog, stats I used were this season. If Chambers is close to 80kg now hes put on 14kg this season.

John, I can appreciate what you're saying, and he's certainly struggled a bit against the likes of Crouch when played at CB, but as right-backs go, I'd say he's very good from an aerial standpoint, and can add a little more than Bellerin when it comes to defending high-balls.

I am gooner, I see, but what I'm saying is that a lot of these stats aren't updated that frequently. ESPN lists Bellerin and Chambers at the heights and weights you mentioned, but their stats aren't infallible.
For example, Hull City's Harry Maguire is listed as being 6 foot 2, whereas other sites list him as 6 foot 3 or 4. Yet when Arsenal played Hull in the FA Cup, Maguire was eye-to-eye with the 6 foot 6 Mertesacker.