Maintaining muscle in a deficit - 10x3 or 5x5?

Hi all. I am currently on a 9 week 'cut' for a holiday. Have been weight training for just over a year and don't want to lose any of my muscle. I am female, my bf is 25% and I'm hoping to get down to 20%.

I've created a deficit of around 400-500 cals a day and have at least 1g of protein for every lb of body weight.

I am looking for a training plan that I can stick to for this duration that will get me good fat loss results, as I've been a bit inconsistent with my workouts lately. I've been looking at the Chad Waterbury 10x3 method and the Stronglifts 5x5, as both tend to focus more on compound movements. Am I right in doing this or is something else more suitable? I'll also be adding 2-3 moderate intensity cardio (if I can walk after the lifting!)

Leaning more towards the 10x3 at the moment (www.t-nation.com/free_online_article/sports_body_training_performance/the_waterbury_method).

Any advice appreciated, thanks :)