NexGen Chips - Which are the best?

[Liptonic]

http://www.pokerchips.de/shopexd.asp?id=1445
http://www.pokerchips.de/shopexd.asp?id=1665
http://www.pokerchips.de/shopexd.asp?id=2662

I'm thinking of selling my Nevada Jacks (Got them through a promo) and buy some NexGens from that money. I think the offers above are interesting, but I never played with these chips and so so I hope someone can tell me something about them.

NexGen Multicolored Edge Spot
NexGen Bee Spot
NexGen River Poker Tour