Well when you go with CE
and you are just starting with liferay than it is always preferable to start with the latest version.
Reasons:
- Here is a one from Liferay Staff
- Bugs are always there, but 6.2 GA2 solves most of them and there would be other versions coming out for 6.2 which would solve more bugs.
- If you find any bugs in 6.1, there would be no newer version for this. So it is better to go with 6.2.
Hope this helps.