Those kinds of names don't bother me, as they're just descriptive. Now, if they were rendered as "LanDark" or "FortIron" it would come across as incredibly cheesy to me. Not saying anything objective about, just my personal taste, and to me that feels incredibly twee.
As for Nirvana, I totally agree. I've never liked the presentation of the plane since the original Manual of the Planes turned it into The Steampunk Dimension. Giant cogs floating in space? No thank you. But the Modrons I like, just not the way they're presented... I reimagine them as sapient representations of Platonic Solids, not silly geometric robots; crystalline structures of digital perfection (no arms or legs) that think and communicate in binary and mathematic code, with the entire plane presented as an expression of mathematical perfection in the form of crystalline structures in perfect Platonic geometric shapes, not giant cogs. Now, that may just be substituting ideas of modern and digital technology for gears and cogs as an analogue for "Order" but it seems much more fitting to me somehow, with crystals being much more evocative of a natural form of order and math being a universal constant and all.
As for Faerie, I wouldn't ever imagine it as an Outer Plane, more like an Inner Plane coexistent with the Prime Material (yeah, I still call it the Prime Material, along with the Positive and Negative Material Planes.) I really love what they did in Pathfinder with the First World, the original "rough draft" of the Material Plane that somehow still persists, combining ideas of Faerie, Lewis Carroll's Wonderland, and Machen's weird "The White People" style fey creatures, with unsettling connections to the Cthulhu Mythos. I actually don't have a real problem with the way the plane was presented in 4E, but the name Feywild just sticks in my craw. Just call the damn thing Faerie (or even Fairyland!) As I said before, Feywild is just too, too precious and twee.