At Busch Gardens the only time I usually experience very long lines like an hour or more is during big peak times like a weekend in the summer or during holidays.The rest of the time you'll likely see 10-30 minute waits.At Sea World I find Wild Arctic and especially Journey to Atlantis many times have longer waits than the coasters.Manta being new usually has a pretty long wait at times,especially in the morning since it's near the front of the park.Kraken on the other hand is my favorite coaster in the park and unless Sea World is doing something silly like running only one train it rarely has a wait more than 20 minutes,only during peak times.