The Affinity line is the cheapest. $179 for P or J or PJ. They're okay. Some are crap. Lots are good.
Vintage Modified are the second cheapest. $299 for P or J or PJ. They're good. Some are crap. Lots are great. There's also VM Tele, and fretless P and J.
Classic Vibe are the most expensive Squiers being made today. $379 for P or J or single coil P. They're very good. Few are crap. Lots are excellent.
Then there's the deluxe. $299/$329 for four and five string active jazz. They're pretty good. The active controls are okay. Not great.
There are a few signature models. I think they're pretty much equivalent to VM's and CV's as far as quality.
There were apparently Mexican Squiers at some point and there were older 80's Japanese Squiers. I don't know much about those.
This sounds 100% correct to me. CV all the way for a budget bass that rocks.
EDIT: I have a VM fretless jazz (made in Indonesia) and a James Johnston jazz (which is a CV, made in China). The CV is higher quality. I'm modding just about everything on the VM for fun, but the CV doesn't need it (maybe just a new nut, so I'm going real bone for a whopping $6.50).