Hoosier is correct in terms of how these two makes compare in
vaping. Let me add that this is mostly due to the difference in resistances of the heating coils. The Joye 510 atty coil is 2.2 - 2.5 ohms. the SLB atty is around 3 ohms, which means that the SLB is going to put out less power (wattage) than the Joye on the same battery. On 3.1 V devices, like the original 510 PV, this can mean that the SBL is too weak. On a true 3.7V device, like a 510 box mod or the Hello, the SLB will also be weaker than the Joye, but the higher voltage will bring it more into a good vaping range for most vapers. The higher restance will make them last longer than the Joye. There also is an airflow difference, with the Joyes having two holes, and the SLB having one, so it has less airflow than the Joye. Whether you like more or less airflow is a personal preference, but many find that the SLBs on a regular 510 atty tend to clog more than Joyes, due to less vaporization power and reduced airflow.
They do tend to be cheaper than Joyes on most vaping sites, but most people enjoy them more at 3.7V or more. YMMV.