<span style="font-size: larger;"><span style="font-family: Comic Sans MS;">EP and GP? Well I done both for a while now. I can tell you this is what the pros and cons are:

EP

For - clean, plane lasts longer, less equipment, silent, tons of power, almost nil maintenance
Against - expensive set up, short flight duration, caution on power usage so as not to kill batts, gets technical, charging batts take time, expensive to go fast

GP

For - cheaper set up, longer duration, less chances of burning a motor, cheaper to go fast, easy to learn
Against - messy, needs a lot of equipment, noisy, planes do not last as long</span></span>