I'm with Feline on not liking the handled ones--they seem awkward to me. I use rulers on about 96% of the quilts I do, so I have a ton of rulers (some came my way when I bought my LA used). I like Linda Taylor's rectangular ruler because it fits my palm well. I just got a new straight ruler from Julia Quiltoff that I'm loving--it fits my fingers well, and has a ruler etched in it. I also have a little one that has a curved edge on one side and straight on the other that is from Dusty Ferrell that is darn handy. For curved edges I like my DeLoa Jones boomerangs (come in several sizes)--the etchings on them make it super easy to do curved cross-hatching. Very similar is a new purchase of Julia Quiltoff's curved rulers. I do have a very complete set of circles and they come in handy, but are always a little "slippy" to use all the way around--DeLoa Jones' has a cool circular that you do half, then flip over and do the other half--seems to work better. I have lots of other rulers, several that click together (little hard to use). Like Feline says, go for those simple shapes that you use a lot and can be used in a variety of ways. Try them out--so they have several markings on them to help you line them up and are they a good fit for your hand. Have fun!