Are there any standards that perhaps you use, or know to be actual standards for rating or grading a program?
I rate apps (usually) by these standards:
Out of 5 stars, usefulness gets maximum 2 stars, stability maximum 2 stars, and Design, maximum 1 star.
Not all software is about speed, so I didn't include that one (although you would want it to be responsive).
If you don't use the software that much, that could be 1 stars for usefulness, but if you don't have to use it much, but when you do, it is super useful, then you can get that 1 stars back. If it is not useful at all, then 0 stars for usefulness (out of 2). Features would be a part of this too.
If a software is stable half of the time:
1 star. If it doesn't crash at all, 2 stars for Stability.
Design could go from layout to intuitiveness. If it is unintuitive though, that might affect the usefulness also. But if it would be useful if it were not laid out so poorly, then that would make Design 0/1 stars, and "usefulness as a result of bad design" minus 1 star automatically. Design could include color scheme also.
Using these brief standards, I can fairly rate or grade any software I use, and can determine whether or not to delete one app for preference over another.
There are times when I get a bit emotional though:
"1 Star!!!!!! Terrible update! What were you thinking? I will be deleting this app ASAP!... RSVP!! ABC, TNT!!"