Which VPS services don't charge you at all for bandwidth?
tilaa.com
vultr.com
hetzner.com
linode.com
If anything you could say that AWS is the closest to actually having unlimited bandwidth (or at least, half-parity there) since they don't charge you for incoming data, where other VPS charge you for data both ways.
Really which has more or less expensive bandwidth comes down to the shape of your data usage.
Which is another way of saying you buy a lump sum of bandwidth included with your VM.
The issue is not paying for bandwidth, the issue is the insane pricing.