Since there are so many pulls out there, I think you need to narrow down what you like more than just saying "simple lines". Do you like a certain style, size, material, or finish? Do you have a specific budget?
To get you started I will show you my Hickory Hardware Greenwich pulls. I think they have simple lines. They were reasonably priced. They come in a couple different finishes and several different size
I used these 10" pulls on all my cabinet doors:
For my drawers, I used different sizes based on the drawer size. In the picture below, the middle drawers are 36" wide. The middle and bottom drawers hold my dishes and pot/pans so they have a good amount of weight in them. The pull I used on them is 19" wide. The drawer stack on the left is 24 inches wide and have have 12 inch pulls. The drawers on the right are 18" wide and I used 10" pulls there. In another area of my kitchen, I have some drawers that are only 13 inches wide and those have the 6 inch pulls.
I have had these pulls installed for 5 years. They have held up beautifully. No problems at all.
Good luck finding the perfect hardware.
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thin drawers
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