) I can safely say that My Little Pony: A New Generation was great! 
And here are my random thoughts:
MLP Season 6 episode rankings (updated 18th August 2020) · 6:21pm Jan 16th, 2019
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)
The Crystalling DECENT
The Gift of the Maud Pie GREAT
On Your Marks MEDIOCRE
Gauntlet of Fire MASTERPIECE
No Second Prances HORRIBLE/BORING
Newbie Dash AWFUL
A Hearth’s Warming Tail BAD
The Saddle Row Review EXCELLENT
Applejack’s “Day” Off EH
Flutter Brutter EXCELLENT
Spice Up Your Life AWFUL
Stranger Than Fan Fiction VERY BAD
The Cart Before The Ponies DECENT
28 Pranks Later GOOD
The Times They Are A Changeling GREAT
Dungeons and Discords GOOD
Buckball Season EXCELLENT
The Fault in Our Cutie Marks DECENT
Viva Las Pegasus GOOD
Every Little Thing She Does AWFUL
P.P.O.V. (Pony Point of View) GREAT
Where The Apple Lies EXCELLENT
Top Bolt GREAT
To Where and Back Again VERY BAD
OVERALL: 134/240 DECENT
Favourite Season 6 episode: Gauntlet of Fire
Least favourite Season 6 episode: Newbie Dash
LINKS TO OTHER RANKING BLOGS
Season One
Season Two
Season Three
Equestria Girls
Season Four
Equestria Girls: Rainbow Rocks
Season Five
Equestria Girls: Friendship Games
Season Six (you're already here, you cotton-headed ninnymuggins)
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
Huh. I must say I'm surprised that you ranked Newbie Dash below Every Little Thing She Does. Not a complaint or anything, just a harmless observation.
4997952
Oh, they're equally awful but Newbie Dash is worse because of the horrible, horrible lesson it preaches. That "hazing and bullying is part of the job so don't try to stand up for yourself, just shut up and take it, you pansy!".
4997956
Not arguing with ya.
4997960
And it sickens me that peoples actually try to defend this by claiming "well it's accurate to how the military works in real life". That just makes it even worse.
4997964
Unfortunately you have
idiotspeople who will bend over backwards to rationalize or justify the most unreasonable or stupid of things in the real world, because confronting the implications of it is just that awful for them. *rolls eyes*4997968
And when somebody contradicts them or calls them out on it, they start crying about how they're being "attacked".
4997987
That's stupidity for you. Being incapable of / refusing to learn.