They are both considered equal, unless you have a preference.
heartgold is better because lugia is stronger in heartgold and lugia is stronger than ho-oh
there almost the same game you get the same Pokemon so there both just as good as each other
Lugia is in Pokemon Silver, Soul Silver, and Heart Gold.
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
you get him as a starter in heart gold and soul silver in the beginning of the game
heart gold and soul silver
Soul Silver and Heart Gold.
Depending on which game your playing, Heart Gold or Soul Silver, it will be Kyogre if you have the Blue Orb (Heart Gold) or Groudon if you have the Red Orb (Soul Silver).
cheat, or play your heart out in games
Pokemon Heart Gold And Soul Silver.
More people have done better in Pokemon Soul Silver. This also depends on whether you want LUGIA or OH-HO first.
That's a matter of opinion. For example, Heart Gold has Ho-Oh, and Silver has Lugia. Play whichever game that has the one you want more.