I'm into avoiding what everyone else is doing,by that i mean things like rather than look for the best horse in a race i look for the horse that has done well recently but might have finished out of a place last start and therefor be at decent odds.

Other thoughts;

Young horses have the freshest legs=ignore horses with too many race starts.

The bigger the field size the better the average win divy.

The last 3 starts are all that really matters and almost all winners have run well at one of their last 3 starts.

The top 8 lines of pre post betting win about 90% of races why look at any other horses.