The Beatles were the first band to accumulate a large, consumerist fanbase like we know of modern day examples ranging from Taylor Swift, to the niche bands. Their music is genuinely pretty good (Rubber Soul is their best album imo) and doesn't really sound too dated.

Lists of artists considered the best do often feature the Beatles at the very top, but that is both a regional preference geared towards the mostly American internet user-base and commercial film-making capacities and a circlejerk written to earn money, not inform. Other parts of the world might not care about music that's apparently well liked in Anglo countries, among music nerds or the public. Also, subjective quality does not guarantee the band being seen as better. For example, the band De/Vision is imo a better Depeche Mode copycat than Camouflage imo, but it's the latter who had commercial success.

Really, the greatest [x] artist rankings are kinda useless, especially in music - but I'm just rambling.