This is actually a very technical problem. First of all, I think it depends on the success rate when your trademark is pure text, then on your graphic success rate, and finally consider whether to combine or separate.

I also suggest that the landlord consider the success rate of applying for registration in the first step. If you can register the text, you can re-apply for registration if the logo changes in the future. The logo of large enterprises is almost upgraded with the development of brands. By that time, your brand has become a minor celebrity. What you think today is nothing in the future.