I think it is fair to say that size doesn't always matter, and everyone that thinks its great yours is small, has not considered for one second how they would feel if they had even a microscopic tumor in their head.
I'll never forget when I got that call so fast after my MRI, I hadn't taken my coat off - the neurologist told me 3 cm and I remember wondering whether there's much room in there for a 3 cm blob, then she said "It's not in a good place". I said my big toe would be a good place to have a tumor. She thought I was joking....
I'll go against the grain here, because I've seen so often people point out small is good, they grow slowly, you got lots of time to mull it over. But in reality, that's how it is for most folks, not everyone. Some do grow quickly. Some tumors are found very small because they caused symptoms that led to the diagnosis. All of these tumors may be non-malignant, but they're only benign if they don't grow and they don't start pressing on stuff that impacts or threatens your life. The choices ahead of you are important - the only great thing I see about a smaller tumor, is more choices about how to deal with it since some are no longer an option beyond say, 2 or 3 cm. Gee, what a benefit! Most people don't grow up just knowing they'd prefer translab over middle fossa or GK should they happen to have a brain tumor later in life!
I hope that doesn't sound too gloomy, or my humor offends - but I'm afraid you're in for a good deal more eye-rolling before you're done, you might entertain yourself by coming up with a few wise cracks yourself. I prefer to feel people are laughing with me than at me if you know what I mean. All the best.