If Neji was a main character and gotten the Tenseigan through some weird method, then the Byakugan would've been all the rave instead of the Sharingan.Problem is that is the only time Neji could have beaten Sasuke. A full fight between the best Sharing an user versus the best Byakugan user is not a fair fight what do ever, tactics only go so far.
But I agree then he was stronger.
The Byakugan is on the level of the Sharingan, but it's below the level of the MS. However the Tenseigan is a massive boost in power that far eclipses both the Rinnegan and the MS. The only Dojutsu that could ever hope to face off against the Tenseigan is the Rinnie-Sharingan, and no one's really certain who would win. Based on Sasuke's usage of the Rinne-Sharingan the Tenseigan seems to have a lot more sustainability.
Well either way, I guess we're just waiting for Boruto's new Dojutsu to pull some God-Tier powers out of no where and instantly become the new best Dojutsu.