To be honest - this poll is kinda meaningless becasue all these rifles are different.
Swiss arms (at least in the 21" version) is a pretty accurate rifle with factory test target - so you know what you are getting. The rifle is very tough and the workmanship is phenomenon. Howeve, it weights like an anchor for a 5.56. Adding anymore stuff on top you need a wagon to haul it.
The XCR is still new - I still don't have full confidence in it yet. They are a small company that fixes things as they go. Product is not mature. It is ok for a fun gun if you want something sturdier than an AR180 but do not want to shoot over the 3K price tag, and do not mind doing a bit betaing. Not enough users had reported high round count experience yet.
AR10 is a 7.62 - Armalite rifles look good and I did not have any problems with the one I had for the limited time. Between DPMS and Armalite, I probably will pick Armalite because Wolverine had been doing Aramlite for a long time, and they have spare parts to fix these rifles if things gone wrong. They are pretty decent performers in the accuracy department out of the box. THe new gen mag is supposed to fix some of the feeding problems.However, 3rd party accounts seem to indicate that this is not the rifle suitable for those intense tactical carbine courses due to durability issue ( in all fairness, this rifle was notdesigned for that kind of pounding or that kind of market in the first place).
TAVOR -I trusted that IWI will not produce anything that are utterly crap even though they have some difficulties in the beginning.. After playing with a few plastic bullpups and rifles before, I think TAVOR has probably condensed all the best features-light weight, good fire control location, etc. However, I do not believe the TAVOR will be as accurate as the AR or the swiss arms - based on my experience, sticking barrel trunions to plastic receivers is an ok practise for practical accuracy but it is no ultra accurate DMR. I don't prefer it but it is the 'new way" of rifle mass production. Of course, the Mepro21 is not something to write home above either. At least we know the IDF, the columbians and the Indians have beta-ed the hell out of this system already so in my book this is good to go. The ability to use the new 10 round LAR mag is a real advantage for day to day plinking to most folks.
I think you should consider an AR too. A quality AR is a light weight, reliable and accurate system. Many people are putting down the AR because it is very common ( want to be different from everyone else) or they see them everyday at work. However, most highly trained professionals seem to go with the AR systems regardless their homegrown SA80, FAMAS, G3 or whatnot.
IMHO, every one on CGN should have at least one swiss arms, one Tavor and one AR.
