Anything works for me. It's the person underneath the clothes.
I will admit that I do like seeing cufflinks and a starched business shirt on. Something about that is very seductive. Elegant.
However, I'm all for the overalls/jeans/torn t-shirt with stains look after a hard day of construction work. I have a shower and I actually like the scent of a little man sweat. So I'm good!
I've had very wealthy clients just show up in sweats and it's like, who cares? Although clothes make the man, I'm the one who is going to do that job for awhile when he visits me.
Clothing is secondary.
Although on an outcall, it really is best to answer the door wearing something. Once, I had a gentleman answer the door in old, tired and sagging tightie whities that were down to his knees. The white cotton was yellowed. It didn't give me a good first impression.
The lacy panties on underneath a well dressed man? Well, that's just icing on the cake for me!!! (I actually like that type of surprise!)