Which sentence sounds better or correct ?
- I have acquired many characteristics that will play a valuable role in my profession.
- I have acquired many characteristics that will be valuable in my profession.
This has to be "opinion only".
Neither sounds marvellous to me.
and even that I like less than I'd like to like it.
Both examples have a "forward looking" and "not there yet" feeling.
I'm not suggesting you actually say it that way :-).