i voted for straight connectors, as long as there is no enclousure-- if you choose to make a enclousure, i'd vote for the right angle.
Just as the title asks, would you prefer connectors coming out the side or the top of a circuit board? Assume there is no enclosure right now. Straight up connectors would make every wire come out the top of the board, making it a bit easier to mount. Side connectors would have wires coming out in 4 directions, making it slimmer and prettier, but harder to mount.
it might be wrong, but that is just how i have come to expect circuit boards to come--- bare boards usually have straight connections, and boards in enclosures usually have the connectors on the side, and most enclosures that have the connectors either on the top or bottom usually end up looking odd.
What on earth does this relate to?
connectors are required.
Also pictures or diagrams of the rest of the board would be needed to get some kind of perspective.
It's like asking a diner whether they want Red Wine or White Wine without telling them what they are having for food.