Helvellyn divides opinion, lots of love for sticks and seldom seen, I found it not bad, nowhere near my Lakes top descents tbh.
Dollywaggon pike is a it love/hate, it’s a bit steppy, but then the descent down from the Tarn is pretty good I’d imagine (I’ve only ever went up it!).
There’s Birkside off toward Thirlmere too, Haven’t done that though, sounds good though, but then you have to get back up and over.
It’s not that long to get up Keppel cove, if you start early it’s entirely feasible to do it twice, find out which you like for yourself.