Blue tape is easier.

it would be! but we wont have our cabinets for another week or two and they want us to order the pulls now.

It's hard to do without seeing your own cabinets installed first. I spent a while using blue tape this past weekend and still can't finalize what I want! I suggest waiting.

This might help a bit. http://theknobbery.com/cabinet-hardware-sizing-guide

That is helpful, thank you!

Typically, the same size pulls are used throughout the kitchen. It can look very choppy, otherwise.

Use the same size pulls and just double up on the larger drawers if necessary. Knobs on doors

They come in different sizes because people have different hand sizes. And tend to way way overthink the issue. Modern drawer hardware has eliminated most of the functional reasons for different sizes of hardware. It’s down to personal preference between style and size consistency, or introducing yet another feature element into the kitchen. As with many things, simpler is better.

They come in different sizes because people have different hand sizes.

I disagree that is why pulls come in different sizes. Family members all have different hand sizes all living in the same home. The manufacturers make pulls in different sizes because drawers are made in different sizes, and people have different ideas - as we see here - on what is the appropriate sizes for drawers. Has nothing to do with hand sizes.

As an aside, my pet peeve is pulls that are so shallow you cannot fit your fingers into them to pull on them. That is very common. If it were true that pulls are made to accommodate different hand sizes, there wouldn't be so many that don't fit anyone's hand.