T2 is T2 - and Vue 7.5 is Vue 7.5 ....
Sounds stupid, i know ... but that's the way it is !
If you are out for MOSTLY producing hyperrealistic landscaping scenes, than T2 is the most powerful, but for sure not too easy to handle program in that genre.
Since Vue 7.5 now includes a planetary procedural model, it's moving even closer to the possibilities of T2 in that area.
On the other hand, Vue 7.5 - and Vue series overall - gives you one of the easiest to handle programs in that area, to come up with great looking results with a short time
of training.
Plus - Vue can be used not only for realistic landscaping, any kind of objects can be included easily - retexturing is possible with many options - it got a very detailed and
powerful function editor, which can be used in an easy, but in extremely complicated combinations, too.
The graphic styles, which can be produced with Vue are basicly endless - realistic, comic-like, surreal or whatever you like - it's extremely versatile.
I really like the extrem quality of T2 for mainly landscaping - there it probably will be unbeaten, if handled by an expert user - but it can't replace the versatility of Vue
in many graphic styles and expressions ...
You just have to know, where your priority lies - for that i own both programs, so have all options available all the time ...
But that's logically only my humble opinion