For me Hu YiTian & Yukee Chen are both interesting case studies....

I really want to like Hu YiTian as an actor, I want to enjoy his works. I disliked the persona he played in 'A Love so Beautiful'.... I think the audience felt cheated by the outcome of that drama, it is still a classic but for the wrong reasons in my opinion. Hu YiTian is a good actor. Yukee Chen is also a very good actress however I have dropped 3 of her dramas this year.

Hu YiTian is looking for the second hit, he really does not want to stay in the shadows of Shen Yue and 'ALSB' forever. I liked 'Hello, the Sharpshooter' but not the same. The reception was different! Wang Hedi I feel is so much different, he has broken out of the Shen Yue shadow with better excellent performances in 'The Rational Life' & 'Love Between Fairy & Devil' if anything has Shen Yue been able to give a good performance post Wang Hedi/Meteor Garden?

Analysis...
Yukee Chen is not the problem, I think the 3 dramas dropped she has been satisfactory
Hu YiTian I feel is ok but ok for a Male Lead isn't enough, female leads will get away with just being ok but male leads task no secret in dramas has more weight on them to carry the drama. I think HYT is super professional but his engagement with the audience is the weakness for me. He may appeal to big fan base but not majority of them in my opinion, reason I dropped this drama I was 10-11 episodes in & just couldnt feel it from him or his male supports.

Wang Hedi in comparison to Hu YiTian has that natural charisma & can engage with the audience, set off that excitement in his dramas or live performances. Yukee Chen issue is the male lead selection, she may have addressed that with dramas with Joseph Zeng, Wang Yibo & 2 with Wang Hedi so I think the best of Yukee is still to come.