I'm in the DSLR camp - the main downside is the extra size and weight over a bridge camera, the upsides are many - image quality(especially in low light), battery life, autofocus speed/accuracy, responsiveness, adjustability & manual controls etc. Megapixel counts are only a small part of overall image quality, a lot of the big numbers these days are more for marketing than anything else. You don't need a full pro-level DSLR either, I'm using a 3 models old mid-range model (Nikon D7000) and it does the job fine.
The decision might come down to whether using the camera or carrying the camera is more important to you!
Some of the new mirrorless interchangable lens cameras are finding quite a good middle ground too - AF speed and battery life still not up with a DSLR, but everything else is about as good in a smaller package.
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