of course every name is different
http://www.heroesofnewerth.com/heroes.phpbecause i am such a nice guy, i'll give you the hero similarities:
andromeda - vengeful spirit
engineer - new hero
magebane - magina
moon queen - luna
night hound - rikimaru
scout - new hero
swiftblade - yurnero
valkyrie - potm
wildsoul - syllabear
zephyr - new hero
arachna - new hero (think drow + viper)
blood hunter - strygwyr
chronos - faceless void
corrupted disciple - razor
dampeer - new hero
fayde - nerubian assassin (mana burn is a % rather than the constant, though, unless that's been changed in dota since i last played)
flint beastwood - sniper
forsaken archer - new hero
sand wraith - specter
slither - venomancer
soulstealer - nevermore
dark lady - new hero
madman - new hero
blacksmith - ogre mage
bombardier - new hero (though i checked a dota vid the other day and i think there's a similar hero)
bubbles - puck
glacius - crystal maiden
myrmidon - new faggot hero
nymphora - new hero (quite similar to ezalor imo)
ophelia - chen
pollywog priest - rhasta
pyromancer - lina
tempest - enigma
chipper - new hero
thunderbringer - zeus
vindicator - silencer
witch slayer - lion

defiler - krobelus
demented shaman - dazzle
dr repulsor - storm spirit
hellbringer - warlock
plague rider - lich
puppet master - new hero
soul reaper - necrolyte
succubus - atropos
torturer - leshrac
voodoo jester - shit with the cask and spirit ward ult whose name i can't fucking remember
wretched hag - queen of pain
armadon - bristleback
behemoth - earthshaker
hammerstorm - sven
jeraziah - omniknight
keeper of the forest - treant protector
legionnaire - axe
pandamonium - new baller hero
pebbles - tiny
predator - new hero (very similar to n'aix)
rampage - barathrum
gladiator - kunkka
tundra - rexxar
accursed - abaddon
balphagore - new fag hero
deadwood - new fag hero
devourer - pudge
electrician - new hero
gauntlet - new
kraken - was like leviathan but now is new with leviathan's gush
magmus - crixalis

maliken - new hero
moraxus - new
pestilence - slardar
pharaoh - clockwerk
war beast - lycan
once you play hon, it's nearly impossible to get back into dota
and yes, if you're high level dota you'll enjoy it, but if you're pub/TDA trash you're better off playing LoL