they are each very strong it deppens on there level.
I think it's Lugia cause Lugia can learn Hydro Pump and Ho-oh is fire/flying type
lugia is better because lugia can learn water type moves and ho-oh is a fire type.
lugia with hyper beam and blizzard
heartgold is better because lugia is stronger in heartgold and lugia is stronger than ho-oh
Lugia is stronger than Ho-oh because it's a water type Pokemon
lugia because it has more attack so... just because she has more doesnt mean its better ho-oh has more defence so he will be harder to defeat in battle
ho-oh is cause on my heartgold version i have ho-oh and my brother has soulsilver we battled and my level 52 ho-oh beat his level 56 lugia in a 2 hit k-o with sacred fire. Ho-oh because when the brass tower was burnt down and suicune entei and raikou died ho-oh was the one who achully revived them but lugia would probably be at the bottom of the sea singing ' you spin my head right round right round'
My friend and I both a have the game. He has heartgold and I have soulsilver. We were battling using Ho-oh and Lugia. I won. You see, Ho-oh is fire and Lugia is water. Fire is extremely powerful, but water doesn't have many weaknesses. Water beats fire. So I think lugia is better(No offense Ho-oh fans) =) No offence to you lugia fan but ho-oh achully does something with his life like searching for a worthy trainer but lugia just sits at the bottom of the ocean for the rest of its life and plus if it wasnt for ho-oh the 3 legendary dogs never would of been revived =)
Lugia at the Whirl Islands and Ho-oh at the Bell Tower
HeartGold and SoulSilver are basically the same game with minor differences such as wild Pokemon and specific items.Most people say that soul silver is beter but i think heart gold because ho oh is more rarer than lugia since lugia is more popular
If i had to choose i would pick ho-oh because lugia doesn't have a move that can inflict a status problem like ho-oh's sacred fire move however you can always teach lugia a move like ice beam that can cause freeze status. Either way i still think its ho-oh.
Lugia will win becuase he is the best. Also lugia knows hydro pump wich is water type move, and ho- oh is a fire and flying type. Since fir types are weak against water type moves. Lugia will win!