I honestly like LTC, BTC, gold, silver, platinum, palladium diamonds... Anything the government cannot inflate away and screw with (even at that I think we all have to acknowledge that the government could screw with BTC if they wanted to trow a few million at computers. I think the majority of us would also have to admit that they have screwed with gold and silver VIA the exchanges and banks already and that DeBeers has screwed with the diamond market since.. well, forever.)
Ditch the LTC (slowly dying), ditch the palladium (illiquid), ditch the diamonds (you are right about DeBeers).
All you need is BTC, gold and silver FTW! Also, some of your local currency in small denominations in case TSHTF!