“The best” is very relative. IMHO, one should choose the most appropriate not the best.
Some projects I’m sticked with SS, the other one (with SS mindset) I use EE.
BTW, I love SS because of its simplicity, speed, security, SEO features and strictness. Make sure you read the black list before you adopt the stack, just in case you will soon find your Uh oh moment. The list teaches me alot about best practices when using WP. Now I just look up the list before choosing any kind of themes or plugins for my project whether I use SS or not. I’m quite new to SS, I feel grateful to the team behind the stack and ready to learn from the community alot.
Cheers,