Which one is better among B.Tech and Integrated B.Tech with MBA?

Higher qualification is always a better qualification and hence, desirable in the long run.Sometimes, there are initial advantages with a Lower qualification, but PG has always an advantage, finally.

In my opinion, simple B.Tech is better as during your B.Tech you can focus on engineering subjects and latter, decide on your own if you want to go for MBA or M.Tech for further education.