Aside from the usual ford vs holden debate, both cars are actually as different as chalk and cheese. One gets its power from a smaller v8 with supercharging the other with sheer brute force of cubes. The HSV is probably less fuel economic due to the size of its engine but with less moving parts due to no supercharger to go wrong may be better on service costs. Exteriors....I have always loved Fords but the current Holden looks more meaner to me. Interior....HSV has more gizmos and will fit a factory DVD in the rear. You need to go aftermarket with the Ford. The list goes on.....
Cruize vs Focus.....Cruize built by Kia or Daewoo in Korea, Focus built in Germany on a European design. Cruize seemingly underpowered with the top of the line model having a 1.4 turbo delivering 2kw more than the base model 1.8 engine, in fact the diesel develops the most power and torque but is not available in the top models. It has a bigger boot and rear leg room, has the same in dash screen as the HSV and can be matched with colours and stripes to the HSV. The Focus seems better designed but feels more cramped in the front seats, has a tiny boot and is cramped in the back. The Focus has a much better powerplant and drives better.
They all have their good points and bad points.