I picked up a Samsung A10e bundled with a year service and 1500/1500/1.5GB buckets for little more than Tracfone's yearly plan cost alone, and have been happy with it because I don't use much mobile data, like the sub-6" size and low weight in my pocket, and also have Google Voice on a Home Mini, plus a landline for actually talking on the phone. In another year or so, I'll probably upgrade to the same price point, Samsung A-series again, whatever QVC, HSN, or ebay is offering at the time.
It really depends on what kind of plan you need, what the best value is going to be and the same is true for phone features since some of the prepaids also let you bring your own phone, if you need certain features or already have an unlocked phone. For some people's work or lifestyle that might mean a better camera than the cheap phones offer, or more memory if they need to try to get real work done on a phone while traveling.