DW is like Star Wars and Trek, it's polarized as what 'version' you fell for. The odd thing among the new DW fans, some I have encountered don't even know there was a show from the 60s to the 80s!
It took me a season or so to get used to a DW that had a decent FX budget as it always looked someone's audition reel for film school in regard to how much was in the budget for it.
Then the new series came out, which for the most part I liked.
I have noticed trends in the show in the new version over the years. For a while, the episodes were amazingly sad and depressing in nature. Then for a while, they were mostly horror stories. But the last season I saw (when I caught them, as I never could tell when new ones were airing as there was never a cohesive schedule, you never knew when they'd air), it was comically preachy and PC in nature. It really felt like the writers had a checklist of things they wanted to address with an agenda, whereas the series used to be neat stories in sci-fi and not a show for social messages. Whitaker wasn't what soured me on the show, but her inclusion was a symptom of what had; PC-centric writing.
In short, it hasn't been the fun sci-fi shows I used to love. It hasn't been for a very long time. Then there's the 'let's undo everything that ever existed on the show' mindset that has been around for a while. You start undoing everything the show was, then what's the freaking point of watching at all?
Recently, they've release three random seasons of Tom Baker episodes on Blu-ray and I have bought and enjoyed them all. Just the other night I watched, "The Talons of Weng-Chiang," and it made me sad how far out into left field the show has gone. It's almost as sad as watching the 80s version as it devolved into an unholy mess that the BBC apparently steered it toward so they could kill it at the time.
I used to be one of the biggest fans of the show. Now? The way things are now, I really wouldn't care much if it got cancelled again, and I can't believe I actually feel that way.