Personally I'd chose 14Mb/sec if you are just browsing. Pro's are the LAN cabling is the ring main and you just need short lengths of LAN cable from the mains socket to your PC. Simple to install. Simple encryption. Only works over short distance so little chance of security breech. Con's are you need at least 2 Homeplugs (one for router to mains and the other from mains to PC). Each additional PC needs another Homeplug. Possible expensive. LAN cables from mains socket to PC.
I'm surprised more people don't use Homeplug.