Hi

If you want to build a strong fleet what would be the best choice to pick from the uniits??

 see many player go for rather 'low' units but in huge amounts,  liike cruisers for human but then fleets with 3000 or 5000 ships or for xjers with dreadlisk and 2000 or 3000 units.  is this better then going for a few big ships?