These checkpoints are for loras mainly, hence the style flexiblity, usually I test my loras on these, check if they look somewhat like the training material and I don't like to switch checkpoints around, so rather have an all in one checkpoint.
V5 (no VAE): It's a mix of SwedishFish v3, Galena Blend v1.4 and Comics Fiction Engine Illustrious v1 (my man alexds9 gave me permission to share merges of his models). V4 had issues, like general lighting (too bright or too dark images) and discoloration with adetailer (I know thats a more common problem, but that occured more often with V4), This one has a pleasant base style while flexible and can handle realistic characters.
Recommended quality tags:
prompt: masterpiece, best quality, absurdres, very aesthetic, high quality, highres
negatives: low quality, lowres, worst quality