Would a comparable condo on the top floor in the case third floor be worth more than a ground level condo?
It depends on the square footage, the outdoor space, availability of parking stalls with that unit etc. Where I live, each floor up is worth at least $2000 in actual value. But prices vary based on features/amenities etc as I said in the first sentence. I've seen ground floor units sell for more than 2nd or 3rd floor units (in a building with an elevator) because it had patio space while the units on the higher floors had no outdoor space whatsoever.
It depends on if you have to walk up the stairs to get to the top floor or you can take an elevator. If you have to walk then it would be worth less, if you can take an elevatior and you have a view it would be worth more.