I actually really like some of the views from Deck 6 on the Oasis class ships. The back of the ships have nice areas to sit and watch the wake.
As far as jogging track goes... I love it (as I am a runner and use it daily for that purpose)
Is the lack of a full-length (or slightly appended) Broadway show not a detractor? We booked Harmony in April over Wonder because it has Grease whereas Wonder has a Royal created show.
Oasis is definitely geared more towards the "resort" crowd, but you definitely still know you're at sea when you step up to the pool decks in my opinion.
I personally love the Oasis class ships - they have the most entertainment, most stuff to explore, best outdoor space to people ratio, best use of outdoor space, and I could go on forever.