We are doing a little of both. The chapel we are going to has 3 ceremonies they offer going from uber religious to not at all. We went through picked the one we liked best, edited things in or out to fit us and added personal touches/preferred quotes.
We are going about this differently. We really wanted my FH close friend to marry us but it's not legal in BC. So we chose to do our legal, 10 min ceremony a few hours before the actual ceremony with only our MOH & BM & parents present which will be the legal vows. Then we will have our actual ceremony with our friend as the officiant and do our own vows in a more relaxed but still serious tone. We are doing a first look before the legal ceremony so that's our opportunity to say private vows if we want to. So many things to consider!!