G Spot Vibrator

Just spotted Lovehoney have a sale on again! And I've been tempted to buy a G spot vibrator but I'm wondering which one is best, the G-whizz or the Slimline? Both are £10 but I can't decide which to buy, help please?!

http://www.lovehoney.co.uk/product.cfm?p=2008

Bought the above recently and my wife loves it. It's brilliant value.

I've also recently bought this one which came last week, but haven't tested it yet (wrong time of the month for Mrs Yorkie...) - she's always wanted a glass vibe.

http://www.lovehoney.co.uk/product.cfm?p=12035

I was thinking the slimline might be better as it takes 2 batteries and is made of plastic which would mean the vibrations would be more powerful and more pressure can be applied. I own a the Tracey Cox Glass Dildo set which comes with a G-Spot one too which is amazing

http://www.lovehoney.co.uk/product.cfm?p=2008

We have a couple of these and they are very good and not only hit the G-spot but get you squirting as well.

However I have recently bought this for the wife and she says it is absolutely amazing and her favourite vibrator ever so far. It is amazingly buzzy, the most powerful vibrations we have come across.and again produces great resuklts.

http://www.lovehoney.co.uk/product.cfm?p=16603

Thanks for your help kc :)