RB4 or UCJ whats best in your opinion.

[On-Rails]

I have used UCJ in the past and have found it to be a good script but have been looking at RB4 as an alternative. UCJ has its quirks but then again I have not used the new version.

I know both scripts can handle large amounts of traffic but what about ease of use and traffic trading through multipe pages? I have alot of catagories and archives.

Any advantages or disadvatages between the two?

I Look forward to your opinions on these scripts.