) I can safely say that My Little Pony: A New Generation was great! 
And here are my random thoughts:
MLP Season One episode rankings (updated 6th Dec 2019) · 10:11pm Oct 24th, 2015
0/10 - AWFUL (unsalvageable, nothing to be gained from watching it, never should have been made, wouldn't recommend to anyone, completely butchers an important subject/teaches a horrible and downright toxic moral)
1/10 - HORRIBLE/BORING (tedious to sit through, hurts to watch it, a bore, no reason to watch it, whatever positive things about it are tiny and not enough to save it)
2/10 - VERY BAD (slightly less terrible, maybe it had that one character you liked or one/two jokes you laughed at that kept it from being a 1 but still very painful)
3/10 - BAD (the kind of bad where you're checking your watch over and over to see how much time is left before it finally finishes)
4/10 - MEDIOCRE (not awful but not really that good either)
5/10 - EH (average, didn't love it or hate it but you feel like you could've done something better with your time)
6/10 - DECENT (the first positive rating on this list, fine overall, you wouldn't watch it again but you are glad you saw it once)
7/10 - GOOD (enjoyable enough that you'd maybe watch it again in future, had some noteworthy flaws but is overall a worthwhile sit-through you'd recommend to someone)
8/10 - GREAT (a solid, enjoyable episode, very entertaining)
9/10 - EXCELLENT (very engaging, awesome, you really recommend it to anyone)
10/10 - MASTERPIECE (extremely engaging, teaches a valuable moral perfectly, definite must-see for anyone)
Friendship is Magic DECENT
The Ticket Master EH
Applebuck Season GOOD
Griffon the Brush Off MASTERPIECE
Boast Busters VERY BAD
Dragonshy GREAT
Look Before You Sleep BAD
Bridle Gossip GOOD
Swarm of the Century VERY BAD
Winter Wrap Up GOOD
Call of the Cutie GREAT
Fall Weather Friends GREAT
Suited for Success GOOD
Feeling Pinkie Keen DECENT
Sonic Rainboom EXCELLENT
Stare Master MEDIOCRE
The Show Stoppers GOOD
A Dog and Pony Show EXCELLENT
Green isn’t Your Colour GOOD
Over a Barrel GREAT
A Bird in the Hoof EH
The Cutie Mark Chronicles EXCELLENT
Owl’s Well That Ends Well HORRIBLE/BORING
Party of One BAD
The Best Night Ever DECENT
OVERALL: 154/250 GOOD
Favourite Season 1 episode: Griffon The Brush Off
Least favourite Season 1 episode: Owl's Well That Ends Well
LINKS TO OTHER RANKING BLOGS
Season One (you're already here, you silly crazy)
Season Two
Season Three
Equestria Girls
Season Four
Equestria Girls: Rainbow Rocks
Season Five
Equestria Girls: Friendship Games
Season Six
Equestria Girls: Legend of Everfree
Season Seven and Equestria Girls: Magical Movie Night
My Little Pony: The Movie
Equestria Girls: Forgotten Friendship
Season Eight and Equestria Girls: Rollercoaster of Friendship
My Little Pony: Best Gift Ever
Equestria Girls: Spring Breakdown
My Little Pony: Rainbow Roadtrip
Equestria Girls: Sunset's Backstage Pass
Season 9
Equestria Girls: Holidays Unwrapped
Friendship is Forever
Season 1 is most definitely my favourite. It has a carefree fun to it.
Sure, character development is fantastic, but you just can't beat the original.
I don't know if it was just because Lauren left for Season 2, but from there and onward they took an immediate atmospheric change, for me anyway (not that I'm saying this is a bad thing).
Interesting. Are you going to do Season 2?
3496048 Yes, I'm gonna do all the seasons and the Equestria Girls movies too. But I think I'll wait until Season Five is over first before I do it.
...but why tho?
5168439
I went back and thought about it more. And I found Pinkie's mental breakdown more disturbing than funny like I'd originally found it, along with the fact she stalked her friends and then had a melodramatic pity party because she thought they didn't like her or her parties any more... just because they said they didn't want to go to another party literally less than a full day after they'd just had one with her.
Honestly, part of the realisation came from Sketchy the Changeling's video on Pinkie Pie's character:
While I personally still like her comedic moments as a side character, Sketchy made me realise the key problems with Pinkie Pie when she's the main focus of an episode: her aggressive neediness, her inability to handle not being the centre of attention for five minutes and the fact that her emotions are about as stable as a house of cards under a ceiling fan. And the problem is these aren't just exaggerations for comic effect; people like this really exist in real life and they're unbearable to be around.
5169172
But she did overreact. A melodramatic pity party is still a melodramatic pity party. Execution matters more than intent.