Guys/ Ladies

I will ask old question - what is better for XC/marathons tube or tubeless system?

Lets put aside costs of both systems and lets focus only on performance/usage

Tubeless are heavier but roll better
Tube system is lighter (latex tubes) but is considered to roll worse
Which is better? Is it worth to sacrifice the weight/ acceleration for rolling performance?

This is probably a question that has benn answered several times, but as time elapses there is more knowledge and users experience about these.