What is your favorite locomotive class or type?

Hey everyone! Today I'd like to continue a really old thread that hasn't seen much action since 2019. I'd like to ask a simple question to you, what is your favorite locomotive type or class? It can be anything, from a monstrous EMD DDA35 to a diminutive German Kof switcher, the powerful Soviet VL10 Electric to a Baldwin 4-6-2 Pacific. Anything you like, post it here!

Here's the guidelines you need to follow:
When you post a locomotive type, state the builder or builders (ex. EMD, ALCo/GE, etc.), the full factory designation or commonly accepted term (ex. SD70MAC (no C45ACCTE or similar please!)) and the country of origin in parenthesis.

Some of my favorites include:

EMD SD80MAC (USA)
GE B40-8 (USA)
ALCo/GE MILW EF1 (USA)
ALCo PA-Series (USA)
EMD 60 Series (USA)
GMD GF6C (Canada)
ALCo RS11 (USA)
MLW M420W (Canada)
ASEA SJ X2000 (Sweden)
ASEA Rc Series (Sweden)

And the list goes on. If you would like to provide pictures along with your list, go ahead!
Enjoy!

Even though I live in the Northeast US, I definitely like British trains (and European ones in general) compared to American trains. I'll throw in a couple of my favorites:

LMS Stanier 5MT "Black 5" (UK - Crewe/Derby/Horwich/Vulcan/Armstrong)
LMS Stanier 8P Princess Coronation Class (UK - Crewe)
LMS Stanier 8P Princess Royal Class (UK - Crewe)
LMS Stanier 6P "Jubilee" Class (UK - Crewe/Derby/North British, and probably my favorite loco class of all time)
LMS Ivatt Class 2 2-6-0 (UK - Crewe/Darlington/Swindon)
LMS Ivatt Clas 2 2-6-2T (UK - Crewe/Derby)
LNER Peppercorn A1 Class (UK - Doncaster/Darlington)
LNER Gresley A4 Class (UK - Doncaster)
LSWR/SR Urie/Maunsell N15 "King Arthur" Class (UK - Eastleigh/North British)
SR Maunsell Lord Nelson Class (UK - Eastleigh)
SR Maunsell School Class (UK - Eastleigh)
BR Standard Class 7 "Britannia" (UK - Crewe)
BR Standard Class 5 (UK - Derby/Doncaster)
BR Class 37 (UK - Vulcan/Stephenson)
BR Class 55 "Deltic" (UK - Vulcan, and my favorite diesel class)

And as for engines outside of Britain... that's a story for another day.

EMD F3/7/9 (USA)
EMD GP7/9 (USA)
EMD GP20 (USA)
EMD GP35/40 (USA)
EMD SD7/9 (USA)
EMD SD40T-2/45T-2 (USA)

This is gonna be a long list so hang in there y’all. Items with an asterisk I’d like to model or reskin someday:

Steam
Lima C&O H8 Allegheny 2-6-6-6 (USA)

Baldwin PRR T1 Duplex 4-4-4-4 (USA)*
Baldwin DM&IR Yellowstone 2-8-8-4 (USA)*

ALCO NYC Niagara 4-8-4 (USA)

USRA Heavy Mikado 2-8-2 (USA)*

Doncaster Works LNER A4 4-6-2 (UK)

Diesel
EMC 1800hp B-B (USA)*
EMC M-10000 (USA)*
EMD E Series (USA)*
EMD FL9 (USA)*
EMD LWT12 (USA)
EMD SD9 (USA)
EMD DD35A (USA)
EMD DDA40X (USA)*
EMD SDP40F (USA)
EMD SD40-2 Snoot (USA)
EMD F45/FP45 (USA)
EMD F40PH (USA)*
EMD F59PHI (USA)*
EMD SD90MAC (USA)

GE P30CH (USA)*
GE U50 (USA)*
GE U36C (USA)*
GE C30-7 (USA)
GE C40-8M (USA/CA)*
GE P40/42DC (USA)

ALCO DL-109 (USA)*
ALCO PA Series (USA)
ALCO RS & RSD Series (USA)
ALCO C636 (USA)*
ALCO C855 (USA)*

Baldwin S-12 (USA)
Baldwin DT-6-6-2000 (USA)*
Baldwin Centipede (USA)
Baldwin PRR BP-20 Sharknose (USA)*

FM Erie-Built (USA)*
FM C-Liner (USA)*
FM H-24-66 Trainmaster (USA)*

Krauss-Maffei ML-4000 (USA)

Electric
GE NH EP-5 (USA)*
GE PRR E44 (USA)*
GE E60CP/CH/MA (USA)*

EMD/ASEA AEM-7 (USA)

Alstom BR Class 373 (UK/FR)

Mitsubishi Heavy Industries MLX01-1 (JP)*

Turbine
Baldwin C&O M-1 (USA)*

ALCO/GE GTEL (USA)*

UAC TurboTrain (USA)*