I had for some months a Revenger X kit (just sold it because a friend offered me a really great sum) and I really love Vaporesso gears, so I think I can give you some thoughts about your question.
Revenger X kit comes with NRG tank. It’s really a very good tank, with an incredible flavor if you’re using GT mesh coils. I can recommend it easily, but it’s good to consider some points before you spend your well earned money:
- NRG is a quite old tank, and I can’t see any new Vaporesso kit coming with it. The newer ones are the Cascade and Skrr tanks. Cascade use GT coils too, Skrr uses different coils, although you can use an adapter to use GT coils as well;
- I really like NRG, but for me it hasn’t sufficient airflow. I really like more airy vaping, so Cascade serves me better, since it offers me a wider airflow adjustment rage (from a very restrictive setup to an incredibly airy one). I think Cascade (and Skrr) are more beautiful tanks as well.
- NRG is more economical in juice consumption than Cascade. Maybe that’s because of airflow as I said above. The difference isn’t that big, though
- Skrr tank are newer than NRG, which means, in theory, it has more advanced design than NRG. But as NRG comes only with Revenger kits, I only saw Skrr coming with Luxe ones, so we can’t say, at this point, it’ll have much more support in coils - although that adapter can be of great help here.
So, between NRG and Skrr tanks I think you’ll be well served by both. If you like GT coils, though (like me), I think NRG is slightly ahead in comparison, in my opinion.
Talking about the mods, now.
Both Revenger X and Luxe mods are great ones. Both feels very comfortable in hands and both are amazingly well made. That said, Luxe is newer than Revenger X, which means it has a more recent chip version and a much improved screen. For me, personally, that two components doesn’t matter so much, though. But you have to mind it in your comparison. Both will serve you very well. I think here the choice is a pure matter of personal preferences.
There’s another possibility. You can buy just the mod of your preference (both Revenger X and Luxe are sold without kits) and combine it with the tank that suits you better. So you can buy a Revenger X mod and combine it with a Skrr tank. Inversely, if you like more Luxe mod but want to use GT coils, you can buy the mod and combine it with a NRG or Cascade tank. You don’t need to buy a closed kit, since you can combine Vaporesso elements (and even another brands tanks and mods) in a way that suits you better.
Hope I could help you a little.