Here is a more recent study between One Touch Ultra and Freestyle Flash
A recent comparison study about 27 different blood glucose meters:
(a pdf file)
Some meters did very bad, check page number 10.
More than 40% of the evaluated BG monitoring systems did not fulﬁll the minimum accuracy
requirements of DIN EN ISO 15197:2003
I really love my Glucocard X-meter mini plus- meter. Arkray (the manufacturer
of X-meter) market it as +-15% accuracy, not the regular +-20%.
If that meter wouldn't be available, my next-in-the-line meter would be Accu-chek Aviva Nano.
No way I would use 1.0µl meters from Onetouch, I love the 0.3µl modern meters.