I saw another thread asking for people to list their least favorite episodes so the universe needs balance.

In no particular order, and a list that change at will:
Partners
Rock bottom
Operation Breakdown
Sick Mind
Out of his Head

 

Operation Breakdown
Out of his Head
Faster, Stronger
One Shall Fall
Con Job

 

Oooh, hard to answer that one...

5. Operation Breakdown
4. One Shall Fall
3. Con Job
2. Rock Bottom
1. Faster Stronger

 

1 - One Shall Fall.
2 - Partners.
3 - Darkness Rising Part 5.
4 - Operation Breakdown.
5 - Stronger, Faster.

 

I just want to say that this is much easier to answer than the Your five worst TF Prime episodes thread.

 

1. One shall fall
2. Partners
3. Darkness Rising part 1(For Cliffjumper)
4. Stronger,Faster
5. Deus Ex Machima

 

1 one shall fall
2 darkness rising part 5
3 operation breakdown
4 stronger faster
5 partners

 

5. Partners
4. Operation Breakdown
3. One Shall Fall (part 1)
2. Rock Bottom
1. Stronger Faster

 

1 - One Shall Fall.
2 - Partners.
3 - Stronger, Faster.
4 - Crisscross
5 - Con Job

 

1. Predatory
2. Crisscross
3. Partners
4. Darkness Rising (as a whole)
5. One Shall Fall

 

1. Partners (this Starscream was EPIC)
2. Stronger, Faster (Ratchet!!!!!!!)
3. Sick Mind (Non, Je Ne Regrette Rien)
4. Scrapheap (aww, how adorabke they ar.....  )
5. Con Job

 

One Shall Fall
Partners
Stronger, Faster
Con Job
Operation: Breakdown

 

5. Predatory
4. Dues Ex Machina
3. Crisscross
2. Faster, Stronger
1. Partners.

 

1. Rock Bottom
2. Predatory
3. Operation: Breakdown
4. Scrapheap
5. Speed Metal

 

Any episode with Knockout is a good episode.

1. Speed Metal

 

1) One Shall Fucking Fall
2) Stronger, Faster
3) Darkness Rising pt. 4
4) Predatory
5) Scrapheap

 

Haha! Yeah.

1. One Shall Fall (epic)
2. Faster, Stronger (or is it the other way around?)
3. Rock Bottom
4. Partners
5. Sick Mind

Runner up: Con Job (not exactly epic, but hey - it's Wheeljack)

 

1. Rock Bottom (character character character and more character and the best i've had since BW)
2. Stronger, Faster ( good action, good humor, good character, what is there not ot like?)
3. One Shall Fall (A cartoon never made me get shivers like that in long time, and One Shall Fall gave me them three times)
4. Operation: Breakdown (Always loved villain and hero team up and Breakdown was much more beliavable in his role than most cartoons that use this trope I've seen, also amazing animation)
5. Sick Mind (Knockout, Starscream, Megatron and and the rest were all so freaking great in this episode you have no idea of how much I need their toys)

 

No order since I really can't decide what are my favorite episodes:

One shall fall
Speed metal
Partners
Darkness rising, part 1
out of his head(?)

 

5. Operation Breakdown- I don't know what it is I like about this episode, but I thought it was pretty good. 4. Partners- It was a very well written episode and I liked watching my favorite version of Arcee and Starscream go at it. I also thought it was neat that they took the g1 weapon of the week plot and still put good writing in it. 3. Out of his Head- Bumblebee is always a personal favorite of mine and this episode has great action and writing. Plus I love watching prime pull a Dukes of Hazzard. 2. Darkness Rising Parts 1-5- These episodes made a terrific introduction to the series with good writing and action. Plus, Cliffjumper was my first transformers toy ever so it was nice to see him again. 1. One Shall Fall- This episode had everything that a great transformers episode should have. It gave us one of the best Prime and Megatron fights ever and also had plenty of suspenseful and epic moments.