Ranking coaster manufacturers has been one of CF's favourite pastimes since it began. About 15 years ago, it was all about Intamin and B&M because they were the two major companies churning out the biggest, badass rides. There was even a bit of snobbery if a new cred wasn't made by B&M/Intamin and they were instantly dismissed. We even argued that B&M/Intamin were in the top division of coaster manufacturers, with companies like Mack, Gerstaluer in the second division and the third tier contained the likes of Vekoma, Zamperla etc.
Then in the late 00's and the earlier part of this decade, things changed. Along came Gerstlauer with their Eurofighter which gave parks an "affordable", highly marketable ride. Hold the phone, parks weren't sticking to tried and tested ride types from trusted manufacturers, they were trying new stuff from companies on the fringes of mainstream. This lead to other fringe companies like Zamperla developing the Booster Bike type, and S&S creating El Locos (which I think are fab despite the general opposition to them). If that wasn't enough, a cocky upstart called RMC burst on the scene with their incredible coaster conversions which, in turn, led to the fantastic Outlaw Run. All the meanwhile, the likes of Mack and Vekoma were churning out rides that not many people took notice of.
Fast forward to the modern day where companies
other than B&M and Intamin have created some of the best coasters on the planet. Maybe Mack got lucky with Helix with it being the right coaster type, in the right setting. Perhaps Walibi Holland took a gamble with Lost Gravity and it paid off because it's so different to the "run of the mill" stuff out there. And you only have to look at Lech Coaster in Poland to see that Vekoma have upped their game.
To an extent, I do agree with with both statements in
@MestnyiGeroi's opening post. But that's only because some manufacturers rides have been around for much longer, or are at prominent parks (in RMC's case) so more enthusiasts have had the opportunity to ride them. Ask this question in another 5-10 years and I bet the statements will seem like utter bollocks.
From having two leading coaster manufacturers around the start of the century to having five or six nowadays is incredible. A sign that the industry is vibrant with creative, fresh and thrilling ideas.