This guide works in assuming UC neopets traded have a VWN name format.
As mentioned above, these are NOT law, but observations on how common UC neopets are and how they fluctuate based on how easy/difficult it can be to find them.
TIER 1
Coconut Jubjub
Darigan Mynci
Darigan Shoyru
Desert Poogle
Halloween Lupe
Maraquan Scorchio
Mutant Buzz
Mutant Jetsam
Mutant Lupe
Mutant Meerca
Mutant Scorchio
Mutant Usul
Sponge Grundo
Tyrannian Quiggle
TIER 2
Baby Eyrie
Baby Kougra
Darigan Grundo
Darigan Jetsam
Darigan Lenny
Darigan Meerca
Darigan Moehog
Darigan Tonu
Darigan Uni
Desert Kau
Faerie Kau
Grey Koi
Halloween Zafara
Maraquan Chomby
Maraquan Grarrl
Robot Blumaroo
Robot Gnorbu
Robot Jetsam
Sponge Koi
Sponge Moehog
Tyrannian Kau
Tyrannian Lenny
Tyrannian Mynci
Tyrannian Nimmo
TIER 3
Baby Skeith
Darigan Acara
Darigan Buzz
Darigan Grarrl
Darigan Lupe
Darigan Skeith
Darigan Usul
Darigan Zafara
Desert Aisha
Faerie Kougra
Faerie Meerca
Faerie Moehog
Grey Grundo
Grey Jetsam
Grey Jubjub
Grey Kau
Grey Lupe
Grey Meerca
Grey Techo
Halloween Wocky
Marshmallow Grundo
Mutant Hissi
Mutant Skeith
Robot Kacheek
Sponge Kiko
Tyrannian Blumaroo
Tyrannian Peophin
Tyrannian Skeith
Tyrannian Techo
TIER 4
Darigan Blumaroo
Darigan Bori
Darigan Cybunny
Darigan Eyrie
Darigan Hissi
Darigan Jubjub
Darigan Kau
Darigan Kougra
Darigan Peophin
Darigan Pteri
Darigan Scorchio
Darigan Techo
Faerie Blumaroo
Faerie Kyrii
Grey Chomby
Grey Flotsam
Grey Grarrl
Grey Moehog
Grey Mynci
Grey Poogle
Grey Shoyru
Grey Uni
Faerie Meerca
Halloween Moehog
Robot Pteri
Tyrannian Bori
Usukiboy Usul
TIER 5
Darigan Bruce
Darigan Gelert
Darigan Kyrii
Darigan Yurble
Faerie Aisha
Faerie Ixi
Faerie Lenny
Faerie Pteri
Faerie Shoyru
Faerie Peophin
Faerie Ruki
Grey Cybunny
Grey Eyrie
Grey Gelert
Grey Kacheek
Grey Kyrii
Grey Peophin
Grey Pteri
Grey Scorchio
Grey Skeith
Grey Wocky
Grey Yurble
Grey Zafara
Ice Bruce
Maraquan Gelert
Maraquan Hissi
Maraquan Kau
Maraquan Skeith
Plushie Bruce
Plushie Buzz
Plushie Flotsam
Sponge Blumaroo
Sponge Lupe
Usukigirl Usul
TIER 6
Darigan Aisha
Darigan Ixi
Faerie Tonu
Faerie Wocky
Faerie Xweetok
Faerie Yurble
Grey Acara
Grey Aisha
Grey Ixi
Grey Korbat
Grey Kougra
Grey Tonu
MSP Poogle
Plushie Chomby
Plushie Grundo
Robot Ixi
Sponge Peophin
TIER 7
Darigan Kacheek
Darigan Korbat
Faerie Tuskaninny
Grey Usul
Plushie Cybunny
Plushie Jetsam
Plushie Kacheek
Plushie Kiko
Plushie Shoyru
Plushie Zafara
Quigukiboy Quiggle
Quigukigirl Quiggle
Sponge Aisha
Tyrannian Draik
Tyrannian Ixi
Tyrannian Krawk
TIER 8
Darigan Krawk
Faerie Grarrl
Grey Krawk
Maraquan Krawk
Plushie Aisha
Plushie Eyrie
Plushie Kau
Plushie Kougra
Plushie Meerca
Plushie Mynci
Plushie Poogle
Plushie Scorchio
Plushie Skeith
Plushie Tonu
Plushie Tuskaninny
Royalgirl Aisha
Royalboy Kougra
Royalgirl Kougra
Royalgirl Mynci
TIER 9
Darigan Draik
Faerie Draik
Faerie Techo
Plushie Acara
Plushie Blumaroo
Plushie Bori
Plushie Draik
Plushie Gelert
Plushie Hissi
Plushie Ixi
Plushie Koi
Plushie Korbat
Plushie Krawk
Plushie Lenny
Plushie Lupe
Plushie Pteri
Plushie Techo
Plushie Wocky
Plushie Yurble
Royalboy Acara
Royalboy Cybunny
Royalgirl Cybunny
Royalboy Draik
Royalgirl Draik
Royalboy Korbat
Royalgirl Korbat
Royalgirl Kyrii
Royalgirl Lupe
Royalboy Mynci
Royalboy Shoyru
Royalgirl Shoyru
TIER 10
Darigan Wocky
Plushie Chia
Plushie Elephante
Plushie Gnorbu
Plushie Grarrl
Plushie Jubjub
Plushie Kyrii
Plushie Moehog
Plushie Nimmo
Plushie Peophin
Plushie Quiggle
Plushie Uni
Plushie Usul
Royalgirl Grarrl
Royalboy Kau
Royalgirl Kau
Royalboy Kyrii
