That depends on your preference. Are you more into high contrast with bright yellows? These (like the last one) will add contrast to breeding projects and the yellow Lessers generally get more yellow with age.
Are you into extreme blushing and flames? More of a faded color? More stripe? Less stripe? More aberrancy in the pattern like spots, keyholes, alien heads? High white sides?
Choose according to what you want and prefer for a pet and/or the one that will compliment your breeding projects the most.
If you plan to breed things that look better with more contrast like the dark morphs or albinos then go with the high yellow one.
If your plans include light morphs that should have more blushing/flames like pastel combos, mojo combos, fire, vanilla, hypo/ghost, etc.. Choose one of the ones that will compliment that.