*Triggered*
Changes from Brawl to Smash 4:
No more tripping (yay!)
No more edgehogging (What's stage control?)
No more chain throws (Good thing, crappy way to implement it)
No more special cancelling in any way (RIP advanced techniques, RIP toon link, RIP samus)
No more Edgeslipping (What's stage control? Better camp the ledge for free, not like i'll be punished for blocking there)
Drastically increased aerial landing lag (Unless you're one of the current S-Tier characters, in which case, you're S-tier)
Drastically reduced Shieldpush (RIP anyone with landing lag)
Drastically increased Shield regeneration (What's shield pressure?)
Drastically astronomically increased roll speed and saftey (Spacing? Nah. Lemme just roll across the stage faster than your character can sprint.)
Drastically increased base knockback on most attacks (Get hit, return to neutral)
Ledge snapping is hilariously generous (Losing? Let me help you!)
No more weakened ledge recovery animation (Losing? Let me help you!)
Everyone can recover from the depths of hell (Losing? Let me help you!)
Edge guarding concept watered down more than ever (Losing? Let me help you!)
Blast zones pushed back 2 miles (Losing? Let me help you!)
Rage mechanic rewards you for being ass (Losing? Let me help you!)
EVERYTHING stage spikes (jank)
tl;dr the mechanics of the game got watered down hard and all the characters are watered down versions of their brawl selves. What the game lost in Metaknight it just gained in Sheik / Cloud / Diddy and pretty much every returning character that was in Brawl is significantly less deep in Smash 4.
Okay, fine. It's not unequivocally superior, but still better than Brawl.
On edgehogging and edgeslipping: While yes, it does mean it's harder to control the stage effectively, I think it also encourages more off-stage play. As in people in Smash 4 are more likely to "go deep" to finish someone off rather than just edgehog them to death. IMO it makes things a bit more interesting.
On landing lag and shieldpush: I think this is a necessary change given utterly ridiculous air dodging and aerial mobility in general is in 4 (something I'm surprised you didn't mention). At least it gives you some chance to punish.
On recovering, blast zones, rage, and stage spikes: Honestly, I'm okay with the generous recoveries in Smash 4, but this stems from me historically playing characters with terrible recoveries in the previous games. Though I can understand the frustration over it because, along with the blast zones being pushed back and the generous ledge grabbing zones, it makes it a lot harder to kill sometimes.
Rage can hurt a bad player as much as it can help one. For example, if you're a better player that's a stock ahead with rage, you're still given a big advantage even if you're at a higher percentage because now you can build damage faster on your opponent and even kill earlier.
And stage spiking goes along with what I said earlier about off-stage fighting. I'm fine with it. Gotta improve that tech game.
I'm going to wholeheartedly agree with you on the rolling and shield recovery time. There definitely it a bit of "let me just roll dodge around the stage and/or shield everything!" Oh, and the knock-back. Makes it difficult to follow-up and keep combos sometimes.
Along with the things I mentioned, I just find Brawl way too slow and floaty. I didn't hate it, but it certainly wasn't fun competitively. And really, a lot of the changes from game to game just boil down to preference. From what you've listed, I'm fine with at least half of those changes. And given that most people prefer Smash 4 to Brawl, it seems everyone else is too.
No way...all the Wii MK games felt like crap to me. Why do i get bumped by a heavy and lose control of my vehicle. Why do i get hit with a shell and have to watch my character flail their arms until they come to a complete stop.
Biased, i hated it
Personally, even though I got used to it, I did not like the physics in Double Dash. The karts felt like I was driving on ice. Also, I can't say many of the tracks were memorable. I can only recall Baby Park, DK Mountain(?), and Mushroom Bridge. Oh, and Rainbow Road of course, but that doesn't count.