The best mod chip for PS2

so, whats the best mod for ps2, cuz i want to buy a mod for my ps2 but there are varoius mods so i dont want to go wrong

i used to have the usb mod called S-box i have to buy another laser len.....
I have a plug mod for mine, that only cost me 10$. You do have to have a GameShark and Devil May Cry, as well so disk swapping, but it will play dvd backups and rips perfectly!