i love all the rulers i own from the Wrights EZ line.
i have one frosted ruler which i think is fabulous, too.
i am not a fan of omnigrid rulers because the lines are so thick it's hard to cut accurately.
i have just checked overstock.com
the olfa frosted seem to be priced better than the wrights. that surprises me because wrights are always the most reasonably priced at every other site i've ever checked.
shop around. i think you'd like the olfa frosted best, but if the wrights you find fit your budget better, you won't be disappointed.