Shopping online in my area

[BGood]

I'm actuallay shopping online for used speakers. Here are 4 items I'm looking into. Which has the best quality/power ratio? Or which should I really avoid?

Thanks

http://montreal.kijiji.ca/c-ViewAd?AdId=76014707&mpname=R2S&mpname=Activity-R2S&mpuid=80002%3B15%3B76014707%3B-1632190612%3B%3B&MessageId=MSG.VIEW_AD.REPLY_TO_AD_SENT&FromEmailAddress=jeangaudet%40xplornet.com&secev=AQAAAR3bPrgAAM0AAAACACIxMWRlODJjOTcxMC5hMGU2 NTQyLjdmMzY3LmZmZmYwN2UxAAAAAASH5HMBAAAAAgAAAAAHv6 SABO19IvPXEKApKLpopB7Vmkr1QDA*&NotifyMe=unchecked

http://montreal.kijiji.ca/c-acheter-et-vendre-equipement-electronique-Haut-parleurs-W0QQAdIdZ90317380

http://montreal.kijiji.ca/c-ViewAd?AdId=92049977

http://www.lespac.com/detail/electronique/audio/tout/quebec/quebec/8101132/haut-parleurs-technics-sb-a15-3voies-240-watts.html

[BGood]

To be used with Yamaha Natural Sound AVC-50 - 190W