Seeking for some advice of Mac Mini vs Macbook Pro both maxed out specs
The current Macbook Pro 13" (early 2015 model with i7-5557U) is faster than the latest available Mac Mini (late 2014 model with i7-4578U).

On paper the Mac Mini (late 2012 model i7-3720QM) is faster and more easy to upgrade (ram + hard drive) but it's probably not available for purchase any more.  In reality the new Macbook Pro will be much faster because of its insane fast SSD (AND its bus).  Yes you can upgrade the Mini with an SSD but you're still stucked with that bus.  

Don't be fooled with the form factor.  Mac Mini's and iMacs basically are laptops in desktop casings.

I'd personally go for the Macbook Pro, any day of the week.  You state you are a notebook guy.  Stick with being one.  On top of that the Macbook potentially has better 2nd hand value if that's important to you.

The new Macbooks (Macbook Air from Mid 2013 and Macbook Pro's from Early 2014) have insane fast SSD's.  Remembering what every forum told thousands of times: if you want to get more speed out of your Mac, upgrade to an SSD before spending money on the RAM.  On a maxed out Macbook Pro you'll have both.