I spend time in both atmospheres. I have seen that those that truly work on themselves, end up pretty close to each other in this regard. They both have true simcha
The difference is in what they start with. Chasidim start with more of an emphasis on Simcha, so they show signs of it, real or on the way to real, earlier. Litvish/Yeshivish place an emphasis on other topics, particularly hasmada, first. The goal in the long term is the same, to be a masmid learning lishma with true Simcha.
There’s no reason to argue because both are viable options, backed by erliche yidden.