Heh! I've been moved in an unreformed male-gaze objectifying way to consider how I seem to rate previous NuWho companions in an inverse relationship with how attractive I find them: the prettiest of the lot was Clara, but probably ended up as my least favourite companion, while at the other end of the spectrum we have Donna, probably my favourite, but not quite the dependable visual treat of Martha or Amy. Rose is somewhere down the 'good companion' end of the spectrum too.
I didn't watch enough of later Capaldi era to have an opinion on Bill and Nardole, but Rory and Mickey don't really buck the trend.
Sexist and unworthy thoughts to be sure, but still good news for Bradley Walsh!