Just read Behoove's analysis and I agree with most except for Haribansha's criticism.
I guess it is upon each person how he judges an actor, but if you don't like Hari dai then you are probably missing what he brings to the mix.

To understand Haribansha, you have to go back to his (and Madan dai's) theater days. I believe he said he started his career as a voice-over for a dog (barking) in a play. There might be some audio/visual recordings available for MAHA's panchayat era comedy like London Airport, Gaun Khane katha etc. They were so bold for their time that they used to get arrested every now and then from the theater itself. Even post democracy comedy like 15 gate is classic MAHA. Madan Krishna brings a rather serious, subtle character while Hari Bansha is more over the edge kind of wacko character.

Sure he is over the top sometimes, you might call it over acting but I protest. His acting is apt for Nepali audience of every level. THere are some who enjoy stupid facial deformations (started by Gopal Raj Mainali dai and now carried out by every comedian in Nepali TV serials); for those Hari dai presents uber-funny character with tonal voice makeover. Yet, he also manages to cater to the more "critical" class who crave for more artistic comedy. This is more apparent in his earlier works, including Chiranjivi and Gharbeti Nani (forgot the title).

I might be repeating things you already know, you belong to the generation that experienced this, along with me. I also haven't watched their later works, but in my account MAHA, and specially Hari dai, is the best actor Nepal ever produced. Santosh Panta, Saroj Khanal are few other that come to my mind.
Actress? No better than Tripti.