How about the DMM Spectre 2?
The shape and gate feel better than either of your options to me.
They are also made in Wales and cheaper - what's not to like?
You'll need to be buying secondhand or have a time machine if you want Nitros - they're not made any more! Astro's maybe? Have the new Wildwires and they are nice draws for sure. They are larger than Neutrino's and handle nicely, but heavier. Heliums are nice too... If I was going BD I'd look at the Oz over the Neutrino. Much nicer biner although it's based on it's geometry.
I've fed the list of climbs you've entered in your UKC logbook into my special algorithm, which uses the data to extrapolate the dimensions of your hands, finger length and diameter, palm size, distance between each knuckle, the coefficient of friction for your skin and overall grip strength. After a few hours of number crunching it has come up with the perfect carabiner for you: