For those unfamiliar with 5e, level 5 is the largest power spike in the game followed by a smaller spike at 7. It's why larian is scared of level 5 and will not release it for EA. So don't get use to rogues and fighters pulling out ahead.
Do you really think Rogues pull out ahead right now?
If you build for dpr, maybe. I assume that's what you are focusing on. If you are talking about overall as a class then no. Once they fix some things and if you exploit happy status, loviatar blessing, the extra bonus action, and some items you could make a dpr monster for low levels.
In the end it won't matter because Larian has been adding homebrew status's so it really depends. Pnp balance will not be 1 to 1 in bg3. They need better A.I. for that.
Until the bugs are squashed guides are really just "what's the latest exploit". Ask me again when the game is further down the line or at least when the current classes have all their features.
