Genuinely yes, and the reason is that it isn’t the same kind of place.
Ooty and Kodaikanal are hill towns — lakes, viewpoints, markets, restaurants, and a lot of other visitors. Valparai is a working plantation with a small town in the middle, around 3,500 residents, no shopping street and no boating.
What you get instead is wildlife in a landscape that people work in. Elephants crossing estate roads, great hornbills over the valley, and one of the last populations of an endangered primate — all within a few kilometres of your room.
If you want things to do, Ooty is better. If you have done Ooty and found it crowded, this is what you were hoping for.