I'd suggest you try all m ethods and you will soon find one that suits you, I have. As I've said, they are MY personal choices. The reasons why, that would take a long time to explain, easier for you to try them all.
By the time you strip out DTS, 2ch AC3 and chop off the 12min fanclub credits crap at the end of LOTR 3, total size of both dvd 1&2 was about 7.5 gb. Being letterboxed, that encodes VERY nicely to 1 dvdr. Dont knock it until you try it. DVDREasy & ReBuilder just cant hack that conversion, DVD2SVCD is the only choice, but then thats just my opinion.
Also, have a read here http://club.cdfreaks.com/showthread.php?t=116934