LoS always felt more Castlevania to me than MoF.
I liked both, but LoS1 was Classicvania in 3D, drawing heavy inspiration from SCIV. there's no real formula for that kind of thing, so it works despite being different. Early classicvanias always had far more varied environments than later metroidvanias. And LoS hits all the checkmarks. The "castle gates" sequence, a besieged village, a BURNING besieged village, Swamps, Cemeteries, spooky forests, ancient city ruins, and even various castle-like areas like the abbey or the castle itself. And then it takes a page out of DoS' book, and goes straight to a hell-like environment.
Gabe himself is rocking Simon's CV2 look, and can do things Simon can, such as grapple with the whip.
It also had, despite the music being mostly "atmospheric" instead of stage by stage- a lot of orchestrated tracks taken right from SCIV.
MoF felt more like a Metroidvania, but at the same time, was very much a clunky kind of mess, So it's harder to enjoy due to some of it's decisions.
then again, I still defend the series overall, even if I feel it ended on a poor note. LoS1 and MoF were fine by me.