I was once making similar decision, as if I should or should not convert to Eastern Orthodoxy. After reading some little of history, Eastern Orthodoxy seemed right to me…
However, as I’ve read more and more, I approached the point where I was almost sure that I would not convert to Eastern Orthodoxy because of their position on Pope vs Ecumenical Patriarch and Nationanistic Churches. Thing is, I could understand their view of Pope if their view of Ecumenical Patriarch made sense to me. Now I do not mean to offend any Orthodox around, I still hold your faith in respect. However, fact Ecumenical Patriarch is Primus happened because of “practical reasons” as he was in Imperial Capital. Understandable, sure. Now, thousand years later, he retains his position because of “tradition” when it is so impractical right now. Before first millenium it was practical to make him primus (or above other Pentarchs excluding Rome) so it happened. Tradition of Alexandria, Antioch and Jerusalem had no authority. Now, thousand years later, no one else is elected Primus because it is practical- Constantinopolitan tradition has higher meaning. Ecclesiology in Oriental Orthodoxy for example, has more decentralized model but also seems to make more sense to me.
Meanwhile in Catholicism, teaching Pope is Peter’s successor is in line with pre-schism councils and patristic scources. It is true Pope did not excercise his power in the way he uses now- however nothing suggests he couldn’t. It was just custom to not step in, until it was needed.
Also, as I began to approach all the things leading to schism and excommunication of Michael Cerularius, I seem to be inclined towards Catholicism much more as stepping on Eucharist is indeed grave sin worthy of excommunication if one does not repent from it.
I will pray for you to choose right. Pray for everyone of us to choose right, as God wants- not as men see it. After all, I am fallible and might have made mistakes in my “research” too. As others have mentioned, from Catholic standpoint converting to Eastern Orthodox would still get you valid sacraments but would separate you from unity of Peter and Church (in sense of catholicity).
Also if you are interested in Eastern tradition (be it theology, liturgy, anything), Eastern Catholics exist. I am Latin Catholic by canon law but I attend Eastern Liturgies a lot. They are fully Catholic in unity with Pope but they maintain their tradition. However, depending on your location you might or might not have them around.