I can't figure out why 1.d4 with Quen's Gambit can be boring. Unless you play the same person over and over then you should rarely get the same positions. And there are a lot of White variations if you are looking for that.
e4 or d4

I am in the opposite situation.
I have mainly been 1.e4 player most of my career.
I have been slowly learning how to play 1.d4 because most of my games are wild & lively.
I am trying to find more boring lines. LOL

In general, e4 leads to more tactical games, and d4 leads to more positional games (of course there are exceptions like the King's Indian Defense being quite tactical, or the Italian being positional).

I think the first thing you have to decide is what you will play after black plays 1...e5. I am fairly certain the two openings with the largest amount of theory to learn are the Sicilian Defense and the Ruy Lopez/Spanish and there does a seem to be lack of enthusiasm for average rated casual and new players to dive into learning these two openings.
Hey guys,
I have been a d4 player for quite a while and my repertoire consists of colle system, London system, queen's gambit, catalan and Jobava London. I initially played e4 but I couldn't memorise multiple lines so I stopped playing e4 altogether..
As I have climbed up the rating ladder, I have realised that d4 is kind of boring. It's the same positions over and over again and for me the whole purpose of playing chess is defeated.
Should I switch to e4 as it leads to more interesting games or should I build around d4?
Does anyone have some past experience on this matter? What are some good openings for e4? Is the Vienna hype really something?