A tricky one.  Most of my Trans Wilts journeys are Chippenham to Salisbury so I could selfishly say lets have the three hour option so I dont have to change.  I would much rather change at Westbury than Bath though, so I wouldnt mind if the timings were such that I would have to wait 10 to 15 minutes at Westbury.  I think we need to look at the overall picture and take the option that would generate the highest loadings and serve the greatest numbers of passangers and that would probably be the 2 hour option.

I'm really not sure what I'd prefer, to be honest...

A 1tp3h  Swindon-Salisbury service does have its benefits. Direct connections between Swindon and Warminster/Salisbury, allowing for more journey oppertunities from other places, like the Stroud valley line, Didcot, etc. And another train to Salisbury would definitely be welcome as that route is currently badly served. One train every 3 hours may not be enough, though. And there may be problems further down the line causing severe delays Melksham way.

A 1tp2h Swindon-Westbury service also has benefits. It's going to reliable as it's a (relatively) short journey. And 1 train every 2 hours- which would require 1 train- would bring tremendous benefit to Melksham and interchanges and passenger numbers would increase. But it's fairly limited in its route, and may not get 'noticed' enough to maximise its full potential.

Of course, should either of these actually happen, we _must_ have better timetables and publicity at all stations along the route, and others such as Bath Spa/Bristol/Cheltenham Spa. That would be one of the core points to make the service sucessful again.