Both Basic Fantasy RPG (BFRPG) and Old-School Essentials (OSE) are retroclones inspired by early Dungeons & Dragons, but they have distinct approaches and philosophies. Here are the major differences and reasons you might choose one over the other:

Because Moldvay & Cook Got it Right
Both Basic Fantasy RPG (BFRPG) and Old-School Essentials (OSE) are retroclones inspired by early Dungeons & Dragons, but they have distinct approaches and philosophies. Here are the major differences and reasons you might choose one over the other:
Initially released in 2007, it has the Old-School vibe of a classic. This multi-module work contains fourteen short adventures (over 80 pages of material!) for beginning to mid-level characters.
Get it free at the Basic Fantasy RPG website.
A complete deep dive of Basic Fantasy RPG's FG1 is slated for a future video, but for now here's a YouTube short.
Chrysogon's Coterie offers lots of pre-generated characters, with stats, backstories, and personalities. Beneath the Silver Spire presents an adventure scenario involving the retrieval of stolen artifacts from a dangerous, zone-divided dungeon. What would happen if we mashed them together?