I use a Casio fx-991ES most off the time. I also have my first calculator that could do BASE-N, a Casio FX-4000P. Using BASE-N on the 4000 takes les keypresses, function is less hidden. Overall the 4000P is a very nice calculator to work with.
My only complaint about the HP48g and HP50g is that using them with hexadecimal is a pain. I would not mind a more programmer oriented version.
At some point I had a TI-55-II which I replaced during early high school with a TI-66 which I still have. Then Casio's FX-7000G came out which led to a funny story. My friend Mike made me aware of it and I thought, "I have got to get that." So that night I arranged to travel across town to BEST to buy the last one they had. The next morning Mike tells me that he had planned on picking up the last FX-7000G available locally but some jerk beat him to BEST by about half an hour.
Later I moved to the HP48g with RPN and never looked back although I still have my TI-66 and a couple of LCD TI-35 derivatives stored with my slide rules for emergencies.
The TI-NSpire has good Hex and other non 10 based decimals options. Worth spending 10 minutes leaning how it's done.
As for the Google option, it's nice when you have it, but on site, with dodgy internet, not so good.
And if management caught us doing work calculations (fuel usage, fill rate, efficiency of x etc) on something that is not secure, like Google, not so good...
I still wish a manufacturer had an "unlimited version" of their top of the range CAS calculators with none of the educational shackles left. I think the HP 50g was the last of those.
Personally, while I do have a CAS app on my Iphone, I do find that a single purpose tool works better for me, less farting around.