I prefer playing Paladins over any other class, and I 90% of my characters are Lawful Good, so... Lawful Good.
The one thing most people forget about LG characters is the fact that they are LG, and and when they do remember, they just go way over the top to try and fix it...
In my opinion, the only thing you have to remember when playing a LG character is the following. Lawful Good doesn't mean Lawful Nice. You don't need to be a goody two-shoes. You can be mean, and still be a "good person". I've played some series Jack-Asses who have been LG, and I've played some "nice" guys who have been Aligned Evil.
So, to sum up. I like LG over all other alignments, and most people I know play LG wrong. Once again... Lawful Good doesn't mean Lawful Nice.