The Cydia vs. Sileo debate rages on, especially as there are now two competing jailbreaks for iOS 12 in addition to iOS 11 – the Electra Team’s Chimera jailbreak and Pwn20wnd’s unc0ver jailbreak.
While Chimera is the only jailbreak to offer full-fledged support for A12(X) devices out of the box, with unc0ver only ‘partially’ supporting A12(X) at the time of this writing, one significant caveat for many jailbreakers is that Chimera installs Sileo as the default package manager instead of Cydia.