I like the Italeri 1/72 kits, good selection of subjects, most are good, even those that aren't the best are still decent, none to really avoid that I know of. At $10-15 for most they won't make you cry if they don't come out so well.
In the larger scales the Testor's H-43 Husky isn't bad, its an older kit and interior detail is minimal, but it goes together fairly well, is an easy build of an odd subject and you can't really go wrong with a $15 1/32 kit.