I use the Ezone 100 and also played for 1 month with the Vcore 100 before I sold it.
I would say that for my 1HBH, the Vcore 100 was slightly easier to swing. The beam is slightly narrower, not a lot on the Vcore 100 (Beam width at widest point: Ezone 100: 26,5mm / Vcore 100: 25,3mm).
However, for my game, I really disliked the very open string pattern in the Vcore 100 as it launches the ball higher than the Ezone 100 does. For my game, I love the Ezone 100 but would like it even more if it was just slightly easier to swing faster on the 1HBH.
Sure; the 98 racquets such as Ezone 98, Pure Aero 98 etc, will be easier to swing faster, especially on the 1HBH, but they play very different to the 100 versions. Less “easy” power and more demanding, requiring more from the player. For some that is a good thing, for others not so good. In tennis one needs to play with the equipment that matches the players level.
Vcore 100 is also slightly more comfortable. Not a big difference but the Ezone 100 is a bit stiffer.
For me, the biggest difference is the launch angle. The Vcore 100 need a good amount of topspin to keep the ball in. The Ezone 100 while being more powerful, has a a very controlled launch angle due to the tighter string pattern. I would say the Ezone 100 is perhaps the most “controllable” tweener racquet out there.