The RST seemed faster etc initially, but I think that this may have been down to the Pasela Tourguard tyres. After a higher number of punctures than I would have like these have now been changed to Marathons.
I think the TGs are more sprightly, and my experience with then has been very good. 1 puncture in 8000 km, and that was from a blackthorn in the thin sidewall on a track, absolutely no puncture issues on the road despite the poor state of many of the back roads I've covered. When they wear out I will replace them with another set of TGs although I will probably drop down a size to 1.5 from 1.75.