В основном каждый раз, будут выполняться такие запросы:

1) SELECT * FROM `vs_config` WHERE `id` = '1'

2) SELECT * 
   FROM `vs_user` 
   WHERE `id` = 28 
   LIMIT 1

3) SELECT `id` 
   FROM `vs_login` 
   WHERE `id_user` = 28 AND 
         `stat` = 1 AND 
         `kash` = '0956aa7e55250087494f996c3a61f5a3'
   LIMIT 1

4) SELECT t1.id_user, t1.last_type, t1.last_time, t1.id_pole, t2.time_comp, t3.a_id, t3.a_time
   FROM `vs_asd` AS t1, 
        `vs_pole` AS t2, 
        `vs_farm` AS t3
   WHERE t1.id = 74 AND
         t2.id = t1.id_pole AND 
         t3.id = t2.type 
   LIMIT 1

5) SELECT `id_cur`, `kol` 
   FROM `vs_asd_cur` 
   WHERE `id_animal` = 401 AND 
         `kol` < 0

6) SELECT `id_cur`, `num`, `id` 
   FROM `vs_balance` 
   WHERE `id_user` = 28

7) UPDATE `vs_balance` 
   SET `num` = 
          CASE
             WHEN `id` = 7 THEN 1655 
             WHEN `id` = 8 THEN 3545 
          END
   WHERE `id` IN (7, 8)

            	

8) UPDATE `vs_asd` 
   SET `last_type` = 1, 
       `last_time` = 1437484847
   WHERE `id` = 74

9) UPDATE `vs_my`
   SET `time_comp` = (
      (SELECT MIN(`last_time`) AS tt 
       FROM `vs_animals` 
       WHERE `id_user` = 28 AND 
             `id_pole` = 200
       LIMIT 4) + 60)
   WHERE `id` = 200

10) SELECT t2.id_quest, t1.tag, t1.num, t1.type, t1.num, t2.progress, t2.id AS id_qus 
    FROM `vs_quest` AS t1, 
         `vs_quest_user` AS t2 
    WHERE t1.id = t2.id_quest AND 
          t2.time_end = 0 AND 
          t2.id_user = 28

11) UPDATE `vs_quest_user` 
    SET `progress` = 4 
    WHERE `id` = 25

Может встречаться 1-2 инсерта...
В каждой таблице планируется иметь ОТ 3.000.000 записей

Что лучше выбрать? innodb или myisam?