Where was it said that it was the love between Anakin and Padme that brought down the Republic?
There's good in the prequels, there is. It is hard to look past the incredibly underperforming Haydn though. And there could've been a few choices made that would've made the series more coherent. As Gadge said: there's no overarching Big Bad. Dooku should've been around since TPM and stuck around to close to the end of RotS. If you see him scheming from the beginning you'd have more of a continuity. Make Grievous the remnants of Maul.
Starting Anakin off that young was a bit of a mistake as well, start him at a later age and you could've used the same actor for all three movies.
The rest is more cosmetic, like dialing down the humour and shooting Yoda with a tranquilizer dart.
You could even retroactively add that to special editions.
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